iOS app crashes on removing elements from RadListView at 2017.3.1018.240

[Namysław]

iOS app (writted in Xamarin Froms) crashes on removing elements from RadListView at 2017.3.1018.240.

It's not easily to reproduce the issue, but with my use case, it's reproducible from time-to-time.

The use case is i.e.:

- RadListView with a few element at list - i.e. 20 elements

- swipe feature, in order to invoke *delete business object* code, which is:
---> invoking API to delete given object (in background)
---> then it's invoking API to get all elements again (let say 19 elements), and once list of elements are retrieved from API, refresh RadListView ItemSource

The use case, when it's highly reproducible, is to invoke *delete business object* code, for at least *TWO* elements at **RadListView** - first of all, for the first one (API request is being invoked), and in parallel of this invoke, invoke *delete busines object* for the second element at list. After that the app crashes.

I've collected two similar crashes, one directly related to **Telerik** source code (TelerikUI_TKListView_ReloadItems_Foundation_NSIndexPath, , but most probably the second one is also related to Telerik.

Crashes collected from device:
1. https://pastebin.com/F9yW8Yma
2. https://pastebin.com/4721ChhU

[Namysław]

At HockeyApp, I've also collected this fragment of stacktrace related 1:1 with first pastebin crashlog:

** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid update: invalid number of items in section 0. The number of items contained in an existing section after the update (4) must be equal to the number of items contained in that section before the update (5), plus or minus the number of items inserted or deleted from that section (1 inserted, 1 deleted) and plus or minus the number of items moved into or out of that section (0 moved in, 0 moved out).'

[Namysław]

Another one:
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'attempt to insert item 3 into section 0, but there are only 3 items in section 0 after the update'

[Namysław]

Anyone? Tech support?

I've reproduced issue with symbolicated logs:

Incident Identifier: 872700EC-3A93-4333-A630-E15861E2AFE4
CrashReporter Key:   5A58273C-7A22-4C70-BA98-8D431B6AE585
Hardware Model:      iPad6,3
Process:         MyApp.iOS [387]
Path:            /var/containers/Bundle/Application/0CFB74EA-56B3-4A8F-B6DD-844C12C0E9D3/MyApp.iOS.app/MyApp.iOS
Identifier:      com.mycompany.myapp
Version:         1.01 (5)
Code Type:       ARM-64
Parent Process:  ??? [1]

Date/Time:       2017-10-27T13:35:59Z
Launch Time:     2017-10-27T13:28:18Z
OS Version:      iPhone OS 10.3.3 (14G60)
Report Version:  104

Exception Type:  SIGABRT
Exception Codes: #0 at 0x18e775014
Crashed Thread:  0

Thread 0 Crashed:
0   libsystem_kernel.dylib               0x000000018e775014 __pthread_kill + 8
1   libsystem_pthread.dylib              0x000000018e83f264 pthread_kill + 108
2   libsystem_c.dylib                    0x000000018e6e99c4 abort + 136
3   libsystem_malloc.dylib               0x000000018e7ba9e8 nanozone_error + 328
4   libsystem_malloc.dylib               0x000000018e7bbc54 _nano_malloc_check_clear + 408
5   libsystem_malloc.dylib               0x000000018e7bacb0 nano_calloc + 76
6   libsystem_malloc.dylib               0x000000018e7ac4e8 malloc_zone_calloc + 164
7   libsystem_malloc.dylib               0x000000018e7ac41c calloc + 36
8   CoreFoundation                       0x000000018f73bdbc __CFStringAppendFormatCore + 5620
9   CoreFoundation                       0x000000018f73a78c _CFStringCreateWithFormatAndArgumentsAux2 + 240
10  CoreFoundation                       0x000000018f75e6d8 _CFLogvEx2Predicate + 152
11  CoreFoundation                       0x000000018f75ea80 _CFLogvEx3 + 476
12  Foundation                           0x0000000190250490 _NSLogv + 124
13  Foundation                           0x0000000190177608 NSLog + 28
14  Foundation                           0x0000000190213730 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 60
15  UIKit                                0x00000001961afdc0 -[UICollectionView _endItemAnimationsWithInvalidationContext:tentativelyForReordering:animator:] + 12592
16  UIKit                                0x0000000195a71b60 -[UICollectionView _updateRowsAtIndexPaths:updateAction:] + 360
17  MyApp.iOS                          0x00000001002c05b4 -[TKCollectionView reloadItemsAtIndexPaths:] + 116
18  MyApp.iOS                          0x00000001002a9740 -[TKListView reloadItemsAtIndexPaths:] + 88
19  MyApp.iOS                          0x0000000101d2d6e0 wrapper_managed_to_native_ApiDefinition_Messaging_void_objc_msgSendSuper_IntPtr_intptr_intptr_intptr (<unknown>:1)
20  MyApp.iOS                          0x0000000101cf9d3c TelerikUI_TKListView_ReloadItems_Foundation_NSIndexPath__ (<unknown>:1)
21  MyApp.iOS                          0x0000000101b47cbc Telerik_XamarinForms_DataControlsRenderer_iOS_ListView_UIListViewTemplateCell__c__DisplayClass16_0__View_MeasureInvalidatedb__0 (<unknown>:1)
22  MyApp.iOS                          0x0000000100e1a24c ObjCRuntime_Trampolines_SDAction_Invoke_intptr (Trampolines.g.cs:11225)
23  MyApp.iOS                          0x0000000100e66d98 wrapper_native_to_managed_ObjCRuntime_Trampolines_SDAction_Invoke_intptr (<unknown>:1)
24  UIKit                                0x00000001958b3964 +[UIView(Animation) performWithoutAnimation:] + 100
25  MyApp.iOS                          0x0000000100e57520 wrapper_managed_to_native_ObjCRuntime_Messaging_objc_msgSend_intptr_intptr_intptr_0 (<unknown>:1)
26  MyApp.iOS                          0x0000000100def694 UIKit_UIView_PerformWithoutAnimation_System_Action (UIView.g.cs:1362)
27  MyApp.iOS                          0x0000000101b41514 Telerik_XamarinForms_DataControlsRenderer_iOS_ListView_UIListViewTemplateCell_View_MeasureInvalidated_object_System_EventArgs (<unknown>:1)
28  MyApp.iOS                          0x00000001006cb07c Xamarin_Forms_VisualElement_InvalidateMeasureInternal_Xamarin_Forms_Internals_InvalidationTrigger (D:\agent\_work\1\s\Xamarin.Forms.Core\VisualElement.cs:669)
29  MyApp.iOS                          0x00000001006a4c94 Xamarin_Forms_StackLayout_InvalidateMeasureInternal_Xamarin_Forms_Internals_InvalidationTrigger (D:\agent\_work\1\s\Xamarin.Forms.Core\StackLayout.cs:93)
30  MyApp.iOS                          0x00000001006c33fc Xamarin_Forms_Layout_OnChildMeasureInvalidated_Xamarin_Forms_VisualElement_Xamarin_Forms_Internals_InvalidationTrigger (D:\agent\_work\1\s\Xamarin.Forms.Core\Layout.cs:326)
31  MyApp.iOS                          0x00000001006c2674 Xamarin_Forms_Layout_OnChildMeasureInvalidated_object_System_EventArgs (D:\agent\_work\1\s\Xamarin.Forms.Core\Layout.cs:193)
32  MyApp.iOS                          0x00000001006cb07c Xamarin_Forms_VisualElement_InvalidateMeasureInternal_Xamarin_Forms_Internals_InvalidationTrigger (D:\agent\_work\1\s\Xamarin.Forms.Core\VisualElement.cs:669)
33  MyApp.iOS                          0x00000001006a4c94 Xamarin_Forms_StackLayout_InvalidateMeasureInternal_Xamarin_Forms_Internals_InvalidationTrigger (D:\agent\_work\1\s\Xamarin.Forms.Core\StackLayout.cs:93)
34  MyApp.iOS                          0x00000001006c33fc Xamarin_Forms_Layout_OnChildMeasureInvalidated_Xamarin_Forms_VisualElement_Xamarin_Forms_Internals_InvalidationTrigger (D:\agent\_work\1\s\Xamarin.Forms.Core\Layout.cs:326)
35  MyApp.iOS                          0x00000001006c2674 Xamarin_Forms_Layout_OnChildMeasureInvalidated_object_System_EventArgs (D:\agent\_work\1\s\Xamarin.Forms.Core\Layout.cs:193)
36  MyApp.iOS                          0x00000001006cb07c Xamarin_Forms_VisualElement_InvalidateMeasureInternal_Xamarin_Forms_Internals_InvalidationTrigger (D:\agent\_work\1\s\Xamarin.Forms.Core\VisualElement.cs:669)
37  MyApp.iOS                          0x00000001006a4c94 Xamarin_Forms_StackLayout_InvalidateMeasureInternal_Xamarin_Forms_Internals_InvalidationTrigger (D:\agent\_work\1\s\Xamarin.Forms.Core\StackLayout.cs:93)
38  MyApp.iOS                          0x00000001006cb19c Xamarin_Forms_VisualElement_OnIsVisibleChanged_bool_bool (D:\agent\_work\1\s\Xamarin.Forms.Core\VisualElement.cs:696)
39  MyApp.iOS                          0x00000001006c35d8 Xamarin_Forms_Layout_OnIsVisibleChanged_bool_bool (D:\agent\_work\1\s\Xamarin.Forms.Core\Layout.cs:355)
40  MyApp.iOS                          0x00000001006cec18 Xamarin_Forms_VisualElement__c___cctorb__213_2_Xamarin_Forms_BindableObject_object_object (D:\agent\_work\1\s\Xamarin.Forms.Core\VisualElement.cs:53)
41  MyApp.iOS                          0x000000010064d930 Xamarin_Forms_BindableObject_SetValueActual_Xamarin_Forms_BindableProperty_Xamarin_Forms_BindableObject_BindablePropertyContext_object_bool_Xamarin_Forms_Internals_SetValueFlags_bool (D:\agent\_work\1\s\Xamarin.Forms.Core\BindableObject.cs:597)
42  MyApp.iOS                          0x000000010064caa8 Xamarin_Forms_BindableObject_SetValueCore_Xamarin_Forms_BindableProperty_object_Xamarin_Forms_Internals_SetValueFlags_Xamarin_Forms_BindableObject_SetValuePrivateFlags (D:\agent\_work\1\s\Xamarin.Forms.Core\BindableObject.cs:391)
43  MyApp.iOS                          0x000000010064d5d0 Xamarin_Forms_BindableObject_SetValue_Xamarin_Forms_BindableProperty_object_bool_bool (D:\agent\_work\1\s\Xamarin.Forms.Core\BindableObject.cs:544)
44  MyApp.iOS                          0x000000010064c4f0 Xamarin_Forms_BindableObject_SetValue_Xamarin_Forms_BindableProperty_object_bool (D:\agent\_work\1\s\Xamarin.Forms.Core\BindableObject.cs:325)
45  MyApp.iOS                          0x00000001006d90c8 Xamarin_Forms_Setter_Apply_Xamarin_Forms_BindableObject_bool (D:\agent\_work\1\s\Xamarin.Forms.Core\Setter.cs:60)
46  MyApp.iOS                          0x00000001006d7e10 Xamarin_Forms_TriggerBase_OnConditionChanged_Xamarin_Forms_BindableObject_bool_bool (D:\agent\_work\1\s\Xamarin.Forms.Core\Interactivity\TriggerBase.cs:101)
47  MyApp.iOS                          0x00000001006dceac Xamarin_Forms_MultiCondition_OnAggregatedStatePropertyChanged_Xamarin_Forms_BindableObject_object_object (D:\agent\_work\1\s\Xamarin.Forms.Core\Interactivity\MultiCondition.cs:47)
48  MyApp.iOS                          0x000000010064d930 Xamarin_Forms_BindableObject_SetValueActual_Xamarin_Forms_BindableProperty_Xamarin_Forms_BindableObject_BindablePropertyContext_object_bool_Xamarin_Forms_Internals_SetValueFlags_bool (D:\agent\_work\1\s\Xamarin.Forms.Core\BindableObject.cs:597)
49  MyApp.iOS                          0x000000010064caa8 Xamarin_Forms_BindableObject_SetValueCore_Xamarin_Forms_BindableProperty_object_Xamarin_Forms_Internals_SetValueFlags_Xamarin_Forms_BindableObject_SetValuePrivateFlags (D:\agent\_work\1\s\Xamarin.Forms.Core\BindableObject.cs:391)
50  MyApp.iOS                          0x000000010064d5d0 Xamarin_Forms_BindableObject_SetValue_Xamarin_Forms_BindableProperty_object_bool_bool (D:\agent\_work\1\s\Xamarin.Forms.Core\BindableObject.cs:544)
51  MyApp.iOS                          0x000000010064aaec Xamarin_Forms_BindableObject_SetValue_Xamarin_Forms_BindableProperty_object (D:\agent\_work\1\s\Xamarin.Forms.Core\BindableObject.cs:84)
52  MyApp.iOS                          0x00000001006dd088 Xamarin_Forms_MultiCondition_OnConditionChanged_Xamarin_Forms_BindableObject_bool_bool (D:\agent\_work\1\s\Xamarin.Forms.Core\Interactivity\MultiCondition.cs:63)
53  MyApp.iOS                          0x00000001006db9a4 Xamarin_Forms_BindingCondition_OnBoundPropertyChanged_Xamarin_Forms_BindableObject_object_object (D:\agent\_work\1\s\Xamarin.Forms.Core\Interactivity\BindingCondition.cs:95)
54  MyApp.iOS                          0x000000010064d930 Xamarin_Forms_BindableObject_SetValueActual_Xamarin_Forms_BindableProperty_Xamarin_Forms_BindableObject_BindablePropertyContext_object_bool_Xamarin_Forms_Internals_SetValueFlags_bool (D:\agent\_work\1\s\Xamarin.Forms.Core\BindableObject.cs:597)
55  MyApp.iOS                          0x000000010064caa8 Xamarin_Forms_BindableObject_SetValueCore_Xamarin_Forms_BindableProperty_object_Xamarin_Forms_Internals_SetValueFlags_Xamarin_Forms_BindableObject_SetValuePrivateFlags (D:\agent\_work\1\s\Xamarin.Forms.Core\BindableObject.cs:391)
56  MyApp.iOS                          0x00000001006537e0 Xamarin_Forms_BindingExpression_ApplyCore_object_Xamarin_Forms_BindableObject_Xamarin_Forms_BindableProperty_bool (D:\agent\_work\1\s\Xamarin.Forms.Core\BindingExpression.cs:174)
57  MyApp.iOS                          0x0000000100652f40 Xamarin_Forms_BindingExpression_Apply_bool (D:\agent\_work\1\s\Xamarin.Forms.Core\BindingExpression.cs:56)
58  MyApp.iOS                          0x0000000100655e54 Xamarin_Forms_BindingExpression_BindingExpressionPart__PropertyChangedb__47_0 (D:\agent\_work\1\s\Xamarin.Forms.Core\BindingExpression.cs:551)
59  MyApp.iOS                          0x0000000100db0d54 Foundation_NSAsyncActionDispatcher_Apply (NSAction.cs:163)
60  MyApp.iOS                          0x00000001005bdad4 wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr + 240
61  MyApp.iOS                          0x0000000102108340 mono_jit_runtime_invoke (mini-runtime.c:2525)
62  MyApp.iOS                          0x00000001021819f4 do_runtime_invoke (object.c:2829)
63  MyApp.iOS                          0x0000000102181954 mono_runtime_invoke (object.c:2983)
64  MyApp.iOS                          0x00000001002eaecc native_to_managed_trampoline_3(objc_object*, objc_selector*, _MonoMethod**, unsigned int) (registrar.m:106)
65  MyApp.iOS                          0x00000001002eb3d0 -[__MonoMac_NSAsyncActionDispatcher xamarinApplySelector] (registrar.m:9914)
66  Foundation                           0x000000019026f50c __NSThreadPerformPerform + 336
67  CoreFoundation                       0x000000018f72942c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 20
68  CoreFoundation                       0x000000018f728d9c __CFRunLoopDoSources0 + 536
69  CoreFoundation                       0x000000018f7269a8 __CFRunLoopRun + 740
70  CoreFoundation                       0x000000018f656da4 CFRunLoopRunSpecific + 420
71  GraphicsServices                     0x00000001910c1074 GSEventRunModal + 96
72  UIKit                                0x000000019590ac9c UIApplicationMain + 204
73  MyApp.iOS                          0x0000000100e553e0 wrapper_managed_to_native_UIKit_UIApplication_UIApplicationMain_int_string___intptr_intptr (<unknown>:1)
74  MyApp.iOS                          0x0000000100dd70fc UIKit_UIApplication_Main_string___intptr_intptr (UIApplication.cs:79)
75  MyApp.iOS                          0x0000000100dd70bc UIKit_UIApplication_Main_string___string_string (UIApplication.cs:63)
76  MyApp.iOS                          0x0000000100321f44 MyApp_iOS_Application_Main_string__ (<unknown>:1)
77  MyApp.iOS                          0x00000001005bdad4 wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr + 240
78  MyApp.iOS                          0x0000000102108340 mono_jit_runtime_invoke (mini-runtime.c:2525)
79  MyApp.iOS                          0x00000001021819f4 do_runtime_invoke (object.c:2829)
80  MyApp.iOS                          0x0000000102184b54 do_exec_main_checked (object.c:2983)
81  MyApp.iOS                          0x00000001020ec5a4 mono_jit_exec (driver.g.c:1040)
82  MyApp.iOS                          0x00000001022376b4 xamarin_main (monotouch-main.m:483)
83  MyApp.iOS                          0x0000000100321e9c main (main.m:199)
84  libdyld.dylib                        0x000000018e66559c start + 0

Thread 1:
0   libsystem_kernel.dylib               0x000000018e774e1c __psynch_cvwait + 8
1   libc++.1.dylib                       0x000000018e165ac8 std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 52
2   JavaScriptCore                       0x0000000194003f08 void std::__1::condition_variable_any::wait<std::__1::unique_lock<bmalloc::Mutex> >(std::__1::unique_lock<bmalloc::Mutex>&) + 108
3   JavaScriptCore                       0x0000000194003e7c bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop() + 164
4   JavaScriptCore                       0x0000000194003d5c bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadEntryPoint(bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>*) + 32
5   JavaScriptCore                       0x000000019400400c void* std::__1::__thread_proxy<std::__1::tuple<void (*)(bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>*), bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>*> >(void*) + 88
6   libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
7   libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
8   libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 2:
0   libsystem_kernel.dylib               0x000000018e757224 mach_msg_trap + 8
1   CoreFoundation                       0x000000018f728e90 __CFRunLoopServiceMachPort + 188
2   CoreFoundation                       0x000000018f726ae4 __CFRunLoopRun + 1056
3   CoreFoundation                       0x000000018f656da4 CFRunLoopRunSpecific + 420
4   WebCore                              0x0000000194321d3c RunWebThread(void*) + 452
5   libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
6   libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
7   libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 3:
0   libsystem_kernel.dylib               0x000000018e774e1c __psynch_cvwait + 8
1   MyApp.iOS                          0x0000000102202814 thread_func (mono-os-mutex.h:173)
2   libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
3   libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
4   libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 4:
0   libsystem_kernel.dylib               0x000000018e757260 semaphore_wait_trap + 8
1   MyApp.iOS                          0x00000001021af0cc start_wrapper (threads.c:829)
2   libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
3   libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
4   libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 5:
0   libsystem_kernel.dylib               0x000000018e757224 mach_msg_trap + 8
1   CoreFoundation                       0x000000018f728e90 __CFRunLoopServiceMachPort + 188
2   CoreFoundation                       0x000000018f726ae4 __CFRunLoopRun + 1056
3   CoreFoundation                       0x000000018f656da4 CFRunLoopRunSpecific + 420
4   Foundation                           0x0000000190171db4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 300
5   Foundation                           0x0000000190192b84 -[NSRunLoop(NSRunLoop) runUntilDate:] + 92
6   UIKit                                0x0000000196294830 -[UIEventFetcher threadMain] + 132
7   Foundation                           0x000000019026f318 __NSThread__start__ + 992
8   libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
9   libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
10  libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 6:
0   libsystem_kernel.dylib               0x000000018e77523c __select + 8
1   MyApp.iOS                          0x00000001021a1fd8 poll_event_wait (threadpool-io-poll.c:146)
2   MyApp.iOS                          0x00000001021a1a00 selector_thread (threadpool-io.c:438)
3   MyApp.iOS                          0x00000001021af0cc start_wrapper (threads.c:829)
4   libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
5   libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
6   libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 7:
0   libsystem_kernel.dylib               0x000000018e774e1c __psynch_cvwait + 8
1   MyApp.iOS                          0x00000001021bbc0c mono_os_cond_timedwait (mono-os-mutex.h:216)
2   MyApp.iOS                          0x00000001021ba8e8 mono_w32handle_timedwait_signal_handle (w32handle.c:976)
3   MyApp.iOS                          0x00000001021ba798 mono_w32handle_wait_one (w32handle.c:0)
4   MyApp.iOS                          0x00000001021baa68 mono_w32handle_wait_multiple (w32handle.c:1244)
5   MyApp.iOS                          0x00000001021aa838 mono_wait_uninterrupted (threads.c:1892)
6   MyApp.iOS                          0x00000001021aab48 ves_icall_System_Threading_WaitHandle_WaitOne_internal (threads.c:2017)
7   MyApp.iOS                          0x000000010049f4a8 wrapper_managed_to_native_System_Threading_WaitHandle_WaitOne_internal_intptr_int + 100
8   MyApp.iOS                          0x000000010049f3f0 System_Threading_WaitHandle_WaitOneNative_System_Runtime_InteropServices_SafeHandle_uint_bool_bool + 76
9   MyApp.iOS                          0x000000010049f22c System_Threading_WaitHandle_InternalWaitOne_System_Runtime_InteropServices_SafeHandle_long_bool_bool + 56
10  MyApp.iOS                          0x000000010049f1dc System_Threading_WaitHandle_WaitOne_long_bool + 40
11  MyApp.iOS                          0x000000010049effc System_Threading_WaitHandle_WaitOne_int_bool + 56
12  MyApp.iOS                          0x000000010049f158 System_Threading_WaitHandle_WaitOne_int + 36
13  MyApp.iOS                          0x00000001004a2510 System_Threading_Timer_Scheduler_SchedulerThread + 1388
14  MyApp.iOS                          0x0000000100499a3c System_Threading_ThreadHelper_ThreadStart_Context_object + 184
15  MyApp.iOS                          0x00000001004977e4 System_Threading_ExecutionContext_RunInternal_System_Threading_ExecutionContext_System_Threading_ContextCallback_object_bool + 400
16  MyApp.iOS                          0x000000010049763c System_Threading_ExecutionContext_Run_System_Threading_ExecutionContext_System_Threading_ContextCallback_object_bool + 40
17  MyApp.iOS                          0x00000001004975bc System_Threading_ExecutionContext_Run_System_Threading_ExecutionContext_System_Threading_ContextCallback_object + 72
18  MyApp.iOS                          0x0000000100499ba4 System_Threading_ThreadHelper_ThreadStart + 48
19  MyApp.iOS                          0x00000001005bdad4 wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr + 240
20  MyApp.iOS                          0x0000000102108340 mono_jit_runtime_invoke (mini-runtime.c:2525)
21  MyApp.iOS                          0x00000001021819f4 do_runtime_invoke (object.c:2829)
22  MyApp.iOS                          0x00000001021af0f0 start_wrapper (threads.c:837)
23  libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
24  libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
25  libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 8:
0   libsystem_kernel.dylib               0x000000018e774e1c __psynch_cvwait + 8
1   MyApp.iOS                          0x00000001021bbc34 mono_os_cond_timedwait (mono-os-mutex.h:173)
2   MyApp.iOS                          0x00000001021ba8e8 mono_w32handle_timedwait_signal_handle (w32handle.c:976)
3   MyApp.iOS                          0x00000001021ba798 mono_w32handle_wait_one (w32handle.c:0)
4   MyApp.iOS                          0x0000000102173ebc ves_icall_System_Threading_Monitor_Monitor_wait (monitor.c:1392)
5   MyApp.iOS                          0x00000001004990f8 wrapper_managed_to_native_System_Threading_Monitor_Monitor_wait_object_int + 100
6   MyApp.iOS                          0x00000001004991a0 System_Threading_Monitor_ObjWait_bool_int_object + 76
7   MyApp.iOS                          0x0000000100498ccc System_Threading_Monitor_Wait_object_int_bool + 40
8   MyApp.iOS                          0x0000000100498d20 System_Threading_Monitor_Wait_object_int + 28
9   MyApp.iOS                          0x0000000100493e08 System_Threading_SemaphoreSlim_WaitUntilCountOrTimeout_int_uint_System_Threading_CancellationToken + 116
10  MyApp.iOS                          0x0000000100493bd4 System_Threading_SemaphoreSlim_Wait_int_System_Threading_CancellationToken + 432
11  MyApp.iOS                          0x0000000100a0afc4 System_Collections_Concurrent_BlockingCollection_1_T_REF_TryTakeWithNoTimeValidation_T_REF__int_System_Threading_CancellationToken_System_Threading_CancellationTokenSource (BlockingCollection.cs:701)
12  MyApp.iOS                          0x0000000100a0add8 System_Collections_Concurrent_BlockingCollection_1_T_REF_TryTake_T_REF__int_System_Threading_CancellationToken (BlockingCollection.cs:656)
13  MyApp.iOS                          0x0000000100a0ad0c System_Collections_Concurrent_BlockingCollection_1_T_REF_Take (BlockingCollection.cs:543)
14  MyApp.iOS                          0x0000000100d11694 Xamarin_Forms_Platform_iOS_CADisplayLinkTicker_StartThread (<unknown>:1)
15  MyApp.iOS                          0x0000000100499a3c System_Threading_ThreadHelper_ThreadStart_Context_object + 184
16  MyApp.iOS                          0x00000001004977e4 System_Threading_ExecutionContext_RunInternal_System_Threading_ExecutionContext_System_Threading_ContextCallback_object_bool + 400
17  MyApp.iOS                          0x000000010049763c System_Threading_ExecutionContext_Run_System_Threading_ExecutionContext_System_Threading_ContextCallback_object_bool + 40
18  MyApp.iOS                          0x00000001004975bc System_Threading_ExecutionContext_Run_System_Threading_ExecutionContext_System_Threading_ContextCallback_object + 72
19  MyApp.iOS                          0x0000000100499ba4 System_Threading_ThreadHelper_ThreadStart + 48
20  MyApp.iOS                          0x00000001005bdad4 wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr + 240
21  MyApp.iOS                          0x0000000102108340 mono_jit_runtime_invoke (mini-runtime.c:2525)
22  MyApp.iOS                          0x00000001021819f4 do_runtime_invoke (object.c:2829)
23  MyApp.iOS                          0x00000001021af0f0 start_wrapper (threads.c:837)
24  libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
25  libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
26  libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 9:
0   libsystem_kernel.dylib               0x000000018e757224 mach_msg_trap + 8
1   CoreFoundation                       0x000000018f728e90 __CFRunLoopServiceMachPort + 188
2   CoreFoundation                       0x000000018f726ae4 __CFRunLoopRun + 1056
3   CoreFoundation                       0x000000018f656da4 CFRunLoopRunSpecific + 420
4   CFNetwork                            0x000000018fe63df4 +[NSURLConnection(Loader) _resourceLoadLoop:] + 400
5   Foundation                           0x000000019026f318 __NSThread__start__ + 992
6   libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
7   libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
8   libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 10:
0   libsystem_kernel.dylib               0x000000018e774e1c __psynch_cvwait + 8
1   MyApp.iOS                          0x00000001021a5070 worker_thread (mono-os-mutex.h:216)
2   MyApp.iOS                          0x00000001021af0cc start_wrapper (threads.c:829)
3   libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
4   libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
5   libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 11:
0   libsystem_kernel.dylib               0x000000018e775a88 __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x000000018e83acac start_wqthread + 0

Thread 12:
0   libsystem_kernel.dylib               0x000000018e775a88 __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x000000018e83acac start_wqthread + 0

Thread 13:
0   libsystem_kernel.dylib               0x000000018e774e1c __psynch_cvwait + 8
1   MyApp.iOS                          0x00000001021a5070 worker_thread (mono-os-mutex.h:216)
2   MyApp.iOS                          0x00000001021af0cc start_wrapper (threads.c:829)
3   libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
4   libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
5   libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 14:
0   libsystem_kernel.dylib               0x000000018e775a88 __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x000000018e83acac start_wqthread + 0

Thread 15:
0   libsystem_kernel.dylib               0x000000018e774e1c __psynch_cvwait + 8
1   MyApp.iOS                          0x00000001021a5070 worker_thread (mono-os-mutex.h:216)
2   MyApp.iOS                          0x00000001021af0cc start_wrapper (threads.c:829)
3   libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
4   libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
5   libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 16:
0   libsystem_kernel.dylib               0x000000018e775a88 __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x000000018e83acac start_wqthread + 0

Thread 17:
0   libsystem_kernel.dylib               0x000000018e775a88 __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x000000018e83acac start_wqthread + 0

Thread 18:
0   libsystem_kernel.dylib               0x000000018e774e1c __psynch_cvwait + 8
1   MyApp.iOS                          0x0000000102217c08 mono_thread_info_sleep (mono-os-mutex.h:216)
2   MyApp.iOS                          0x00000001021a4a74 monitor_thread (threadpool-worker-default.c:693)
3   MyApp.iOS                          0x00000001021af0cc start_wrapper (threads.c:829)
4   libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
5   libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
6   libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 19:
0   libsystem_kernel.dylib               0x000000018e774e1c __psynch_cvwait + 8
1   MyApp.iOS                          0x00000001021a5070 worker_thread (mono-os-mutex.h:216)
2   MyApp.iOS                          0x00000001021af0cc start_wrapper (threads.c:829)
3   libsystem_pthread.dylib              0x000000018e83d68c _pthread_body + 236
4   libsystem_pthread.dylib              0x000000018e83d59c _pthread_start + 280
5   libsystem_pthread.dylib              0x000000018e83acb4 thread_start + 0

Thread 0 crashed with ARM-64 Thread State:
    pc: 0x000000018e775014     fp: 0x000000016fd5e940     sp: 0x000000016fd5e920     x0: 0x0000000000000000
    x1: 0x0000000000000000     x2: 0x0000000000000000     x3: 0x0000000000000000     x4: 0x0000000000000000
    x5: 0x0000000000000000     x6: 0x00676f6c7379732f     x7: 0x00000000ffffffff     x8: 0x0000000008000000
    x9: 0x0000000004000000    x10: 0xcccccccccccccccd    x11: 0x000000000000000a    x12: 0x0000000000000000
   x13: 0x0000000000000031    x14: 0x000000018f73dff4    x15: 0x00000000ffffffdf    x16: 0x0000000000000148
   x17: 0x0000000000000000    x18: 0x0000000000000000    x19: 0x0000000000000006    x20: 0x00000001b4fcbb40
   x21: 0x0000000000000001    x22: 0x0000000102708000    x23: 0x000000017037de80    x24: 0x0000000000000000
   x25: 0x0000000102708580    x26: 0x0000000000000001    x27: 0x00000001903ea391    x28: 0x000000000000000c
    lr: 0x000000018e83f264   cpsr: 0x0000000000000000

Link Register Analysis:
  Symbol: pthread_kill + 108
  Description: We have determined that the link register (lr) is very likely to contain the return address of frame #0's calling function, and have inserted it into the crashing thread's backtrace as frame #1 to aid in analysis. This determination was made by applying a heuristic to determine whether the crashing function was likely to have created a new stack frame at the time of the crash.
  Type: 1

Binary Images:
       0x10009c000 -        0x10237bfff +MyApp.iOS arm64  <065711837aa03e799bc79d8dc172cab0> /var/containers/Bundle/Application/0CFB74EA-56B3-4A8F-B6DD-844C12C0E9D3/MyApp.iOS.app/MyApp.iOS
       0x18e15c000 -        0x18e15dfff  libSystem.B.dylib arm64  <ac92dd7e5a81380bba05c91be3a473ec> /usr/lib/libSystem.B.dylib
       0x18e15e000 -        0x18e1b3fff  libc++.1.dylib arm64  <da0f6a86db853140b2d79e3b36f28795> /usr/lib/libc++.1.dylib
       0x18e1b4000 -        0x18e1d0fff  libc++abi.dylib arm64  <5dc5ba28cfa43f838099049d17ba9ec6> /usr/lib/libc++abi.dylib
       0x18e1d4000 -        0x18e5b1fff  libobjc.A.dylib arm64  <85f3b59b96243690b138ce96e663bf4b> /usr/lib/libobjc.A.dylib
       0x18e5b2000 -        0x18e5b6fff  libcache.dylib arm64  <ad6aea8120b33622bc51c6b39587c773> /usr/lib/system/libcache.dylib
       0x18e5b7000 -        0x18e5c2fff  libcommonCrypto.dylib arm64  <468e03d6648137679caa585f8bc8e8e8> /usr/lib/system/libcommonCrypto.dylib
       0x18e5c3000 -        0x18e5c6fff  libcompiler_rt.dylib arm64  <0ad97345fff23bb99981ac51c558bedf> /usr/lib/system/libcompiler_rt.dylib
       0x18e5c7000 -        0x18e5cefff  libcopyfile.dylib arm64  <137d5a38cab03e94a4c7c8eb0387c098> /usr/lib/system/libcopyfile.dylib
       0x18e5cf000 -        0x18e630fff  libcorecrypto.dylib arm64  <4788430b66eb3612b235c713bf498f9a> /usr/lib/system/libcorecrypto.dylib
       0x18e631000 -        0x18e660fff  libdispatch.dylib arm64  <0217363bf6cc340e8479a985bd29c9ac> /usr/lib/system/libdispatch.dylib
       0x18e661000 -        0x18e665fff  libdyld.dylib arm64  <e514c9464eed3be5943a2c61d9241fad> /usr/lib/system/libdyld.dylib
       0x18e666000 -        0x18e666fff  liblaunch.dylib arm64  <b6ce158724c43dc19e2910b5a4fbb796> /usr/lib/system/liblaunch.dylib
       0x18e667000 -        0x18e66cfff  libmacho.dylib arm64  <ddbfeaa62560377cb0c70dac83b53e39> /usr/lib/system/libmacho.dylib
       0x18e66d000 -        0x18e66efff  libremovefile.dylib arm64  <6b19d914295232a8b715671aef793783> /usr/lib/system/libremovefile.dylib
       0x18e66f000 -        0x18e686fff  libsystem_asl.dylib arm64  <55aa3abf71d6389d8e10f949d8c95f7f> /usr/lib/system/libsystem_asl.dylib
       0x18e687000 -        0x18e687fff  libsystem_blocks.dylib arm64  <45adbecbe4b93744911aa6314fbbc8ff> /usr/lib/system/libsystem_blocks.dylib
       0x18e688000 -        0x18e704fff  libsystem_c.dylib arm64  <4fada8fe23433d16a6bfd9ef0cc6ee2b> /usr/lib/system/libsystem_c.dylib
       0x18e705000 -        0x18e709fff  libsystem_configuration.dylib arm64  <31315dfce5c43348ba19abc2205b6065> /usr/lib/system/libsystem_configuration.dylib
       0x18e70a000 -        0x18e70ffff  libsystem_containermanager.dylib arm64  <33505a6b4f8e33fabb902dabe56ea643> /usr/lib/system/libsystem_containermanager.dylib
       0x18e710000 -        0x18e711fff  libsystem_coreservices.dylib arm64  <533a3435a57b35b4940d5dad2c02994d> /usr/lib/system/libsystem_coreservices.dylib
       0x18e712000 -        0x18e72afff  libsystem_coretls.dylib arm64  <ca16948474733df0899eca179cbfbf1a> /usr/lib/system/libsystem_coretls.dylib
       0x18e72b000 -        0x18e731fff  libsystem_dnssd.dylib arm64  <7c3c92878afc34379443ae3867dbab40> /usr/lib/system/libsystem_dnssd.dylib
       0x18e732000 -        0x18e755fff  libsystem_info.dylib arm64  <a34410e49a723b9280c17ab01ce03659> /usr/lib/system/libsystem_info.dylib
       0x18e756000 -        0x18e77afff  libsystem_kernel.dylib arm64  <98ea0e581e203a67a8436a5bbba44e35> /usr/lib/system/libsystem_kernel.dylib
       0x18e77b000 -        0x18e7a7fff  libsystem_m.dylib arm64  <995e702eaa7e36269f6583f59441ee03> /usr/lib/system/libsystem_m.dylib
       0x18e7a8000 -        0x18e7c3fff  libsystem_malloc.dylib arm64  <684ef95ec2a0322b95dfb468ecbaab0e> /usr/lib/system/libsystem_malloc.dylib
       0x18e7c4000 -        0x18e81dfff  libsystem_network.dylib arm64  <fc9a825ebfee3734a2850dc04ba86105> /usr/lib/system/libsystem_network.dylib
       0x18e81e000 -        0x18e827fff  libsystem_networkextension.dylib arm64  <b961b0ab5ffc36f4ab95bac31bb84909> /usr/lib/system/libsystem_networkextension.dylib
       0x18e828000 -        0x18e832fff  libsystem_notify.dylib arm64  <9d36fb0b8ee4390c88677e262e7150ec> /usr/lib/system/libsystem_notify.dylib
       0x18e833000 -        0x18e839fff  libsystem_platform.dylib arm64  <9ee232e0dd6b32ffb5d8d11368c4d40c> /usr/lib/system/libsystem_platform.dylib
       0x18e83a000 -        0x18e843fff  libsystem_pthread.dylib arm64  <a9496f189b713c25962a892a4b055b2b> /usr/lib/system/libsystem_pthread.dylib
       0x18e844000 -        0x18e847fff  libsystem_sandbox.dylib arm64  <57284da1244131929a396eb9d924bf76> /usr/lib/system/libsystem_sandbox.dylib
       0x18e848000 -        0x18e84ffff  libsystem_symptoms.dylib arm64  <d9ae74f7624f3cba8b729bdcacb1f59d> /usr/lib/system/libsystem_symptoms.dylib
       0x18e850000 -        0x18e862fff  libsystem_trace.dylib arm64  <633c82b7bf243f29a8bab752896c8bc4> /usr/lib/system/libsystem_trace.dylib
       0x18e863000 -        0x18e868fff  libunwind.dylib arm64  <990bab05c7b333f3bfc274d5ea579b71> /usr/lib/system/libunwind.dylib
       0x18e869000 -        0x18e869fff  libvminterpose.dylib arm64  <0b2a22158b643b788ed514a6b0df9c1b> /usr/lib/system/libvminterpose.dylib
       0x18e86a000 -        0x18e890fff  libxpc.dylib arm64  <af5617c2a2663815b41e7b6c8526074c> /usr/lib/system/libxpc.dylib
       0x18e891000 -        0x18eaa6fff  libicucore.A.dylib arm64  <4014bfce423232bba3683b741170cdf0> /usr/lib/libicucore.A.dylib
       0x18eaa7000 -        0x18eab8fff  libz.1.dylib arm64  <ab0d683d7cf931e49e5456a420ced72e> /usr/lib/libz.1.dylib
       0x18f64e000 -        0x18f9cffff  CoreFoundation arm64  <719044f95fe23ee0ab14504def42b100> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
       0x18f9d0000 -        0x18f9e0fff  libbsm.0.dylib arm64  <4f2930cfb67e3965a863f8bfb7704300> /usr/lib/libbsm.0.dylib
       0x18f9e1000 -        0x18f9e1fff  libenergytrace.dylib arm64  <5cfceffa0be736398124efbb3d80cbd1> /usr/lib/libenergytrace.dylib
       0x18f9e2000 -        0x18fa5dfff  IOKit arm64  <f5fde3b182223f7aa90bcd8145450589> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
       0x18fa5e000 -        0x18fa7ffff  libMobileGestalt.dylib arm64  <0a7c350b15c53efd9c085686c0fc271f> /usr/lib/libMobileGestalt.dylib
       0x18fa80000 -        0x18fb69fff  libxml2.2.dylib arm64  <c24ddb0112663c9bbf05b818a63ac0ed> /usr/lib/libxml2.2.dylib
       0x18fb6a000 -        0x18fc04fff  Security arm64  <287bf21cb54734b9b91574ccb4e71436> /System/Library/Frameworks/Security.framework/Security
       0x18fc05000 -        0x18fc70fff  SystemConfiguration arm64  <6891bc09dec33fcf9d92815f2bb3aa5c> /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
       0x18fc71000 -        0x18fd81fff  libsqlite3.dylib arm64  <8ca24bba70e436e2b51e00f3ce519335> /usr/lib/libsqlite3.dylib
       0x18fd82000 -        0x1900f6fff  CFNetwork arm64  <90d5c0c0c2813113ada33291569dd779> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
       0x1900f7000 -        0x190104fff  libbz2.1.0.dylib arm64  <4baff1f2fffe30af8c523142c862c520> /usr/lib/libbz2.1.0.dylib
       0x190105000 -        0x19011dfff  liblzma.5.dylib arm64  <eb9e235443573c948bcd016ea00a3709> /usr/lib/liblzma.5.dylib
       0x19011e000 -        0x190138fff  libCRFSuite.dylib arm64  <a859d30f7de034a2bee5aa662bc5bc2d> /usr/lib/libCRFSuite.dylib
       0x190139000 -        0x190162fff  libarchive.2.dylib arm64  <7e0ef1a7aa7f37ea875adfca9c334aff> /usr/lib/libarchive.2.dylib
       0x190163000 -        0x190164fff  liblangid.dylib arm64  <80d66702d7ce30b7b75c3f75472697eb> /usr/lib/liblangid.dylib
       0x190165000 -        0x190434fff  Foundation arm64  <b301584673973341a35216f9c24a4a8b> /System/Library/Frameworks/Foundation.framework/Foundation
       0x190435000 -        0x1904e0fff  libBLAS.dylib arm64  <708d8599265c39d3881fc57c55bc982d> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libBLAS.dylib
       0x1904e1000 -        0x19080ffff  libLAPACK.dylib arm64  <96e5ce2234903263ad30c6398972d535> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libLAPACK.dylib
       0x190810000 -        0x190aaafff  vImage arm64  <1f67094759de381898830a3692edff0f> /System/Library/Frameworks/Accelerate.framework/Frameworks/vImage.framework/vImage
       0x190aab000 -        0x190ad0fff  libvMisc.dylib arm64  <d67817ca89b3397a90c1ae1df6855587> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvMisc.dylib
       0x190ad1000 -        0x190ae5fff  libLinearAlgebra.dylib arm64  <37c71c692da03cc9a1534badab1cf6f4> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libLinearAlgebra.dylib
       0x190ae6000 -        0x190af7fff  libSparseBLAS.dylib arm64  <2237c532ebe539f8ab93c181dfa1a291> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libSparseBLAS.dylib
       0x190af8000 -        0x190b6dfff  libvDSP.dylib arm64  <0ced33b1008e357e9acb9d039cff697d> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvDSP.dylib
       0x190b6e000 -        0x190b6efff  vecLib arm64  <d21c98b0003235f99d247f4f934c7641> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/vecLib
       0x190b6f000 -        0x190b6ffff  Accelerate arm64  <f38de9acd0ba3a00a1c32fda7a240f38> /System/Library/Frameworks/Accelerate.framework/Accelerate
       0x190b70000 -        0x1910b4fff  CoreGraphics arm64  <d53212b5c86539c89e6128cf5e1755f1> /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
       0x1910b5000 -        0x1910c9fff  GraphicsServices arm64  <b5749f3fa6f13ce689683db33f23256c> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
       0x1910ca000 -        0x191117fff  AppSupport arm64  <49a440593a073cccb68ef6333ad031fd> /System/Library/PrivateFrameworks/AppSupport.framework/AppSupport
       0x191118000 -        0x191245fff  MobileCoreServices arm64  <698b2612b3193295b1a25adcac4b396f> /System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices
       0x191246000 -        0x1912a7fff  BaseBoard arm64  <ff0febbec86337aead2c18f8ac460dec> /System/Library/PrivateFrameworks/BaseBoard.framework/BaseBoard
       0x1912a8000 -        0x1912b7fff  AssertionServices arm64  <678b3538927439dea29c80b43ab5b5a6> /System/Library/PrivateFrameworks/AssertionServices.framework/AssertionServices
       0x1912b8000 -        0x1912e5fff  BackBoardServices arm64  <9d2893bea3b33859a3ef4037acba33c2> /System/Library/PrivateFrameworks/BackBoardServices.framework/BackBoardServices
       0x1912ea000 -        0x191339fff  FrontBoardServices arm64  <8783f168ed4b3c3f964f5deffa37b7d2> /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices
       0x19133d000 -        0x191371fff  SpringBoardServices arm64  <e17511326b56346298bf8edfa81dba1d> /System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices
       0x191372000 -        0x19138cfff  MobileKeyBag arm64  <b0463506b6d53733814f3506384a4b7b> /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag
       0x19138d000 -        0x191395fff  IOSurface arm64  <6206ce4aff193f5e91d25dbbb2be47bf> /System/Library/PrivateFrameworks/IOSurface.framework/IOSurface
       0x191396000 -        0x1913a1fff  liblockdown.dylib arm64  <3904292ecd513a0e85216e7c3abd1101> /usr/lib/liblockdown.dylib
       0x1913a2000 -        0x1913b8fff  CrashReporterSupport arm64  <b06bf5fa4c9b36f595a2a8ea4a84cca9> /System/Library/PrivateFrameworks/CrashReporterSupport.framework/CrashReporterSupport
       0x1913b9000 -        0x1913bbfff  IOSurfaceAccelerator arm64  <7dd37fd295f93ecfa89401bbbb418dbf> /System/Library/PrivateFrameworks/IOSurfaceAccelerator.framework/IOSurfaceAccelerator
       0x1913bc000 -        0x1913fcfff  AppleJPEG arm64  <d8b98c13f8d83200ad41d6b30d3c9c14> /System/Library/PrivateFrameworks/AppleJPEG.framework/AppleJPEG
       0x1913fd000 -        0x19198afff  ImageIO arm64  <5c024c655b8b3f4992de9ca2197b9183> /System/Library/Frameworks/ImageIO.framework/ImageIO
       0x19198b000 -        0x191991fff  TCC arm64  <b11f764c841d3c69a50a6b0993735d43> /System/Library/PrivateFrameworks/TCC.framework/TCC
       0x191992000 -        0x191996fff  AggregateDictionary arm64  <fab7b20283e43d8aa268b7d051e3d521> /System/Library/PrivateFrameworks/AggregateDictionary.framework/AggregateDictionary
       0x191997000 -        0x1919a3fff  PowerLog arm64  <4ad93e4e67cf3d5e9993896a52fd2755> /System/Library/PrivateFrameworks/PowerLog.framework/PowerLog
       0x1919a4000 -        0x191a0efff  libTelephonyUtilDynamic.dylib arm64  <a9cba41bffa83838b49c3f8ff2538f8a> /usr/lib/libTelephonyUtilDynamic.dylib
       0x191a0f000 -        0x191a21fff  CommonUtilities arm64  <123bd9ef97f03988a86294b1abd78313> /System/Library/PrivateFrameworks/CommonUtilities.framework/CommonUtilities
       0x191a22000 -        0x191a37fff  libcompression.dylib arm64  <c5e41b4a6cbf37fb87cd5cd44f6906b8> /usr/lib/libcompression.dylib
       0x191a38000 -        0x191cd0fff  CoreData arm64  <7574c4fafa7a33bf82e05d9fa01ed542> /System/Library/Frameworks/CoreData.framework/CoreData
       0x191cd1000 -        0x191cd6fff  libCoreVMClient.dylib arm64  <101bfe9aed0f304b9346beead1629a15> /System/Library/Frameworks/OpenGLES.framework/libCoreVMClient.dylib
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       0x191cdd000 -        0x191cdefff  libCVMSPluginSupport.dylib arm64  <02280e05346d31509d62ac2583f72857> /System/Library/Frameworks/OpenGLES.framework/libCVMSPluginSupport.dylib
       0x191cdf000 -        0x191ce2fff  libCoreFSCache.dylib arm64  <158c17b30426340a832ab09982dd8843> /System/Library/Frameworks/OpenGLES.framework/libCoreFSCache.dylib
       0x191ce3000 -        0x191d24fff  libGLImage.dylib arm64  <34bb7e96428f3c1abd6f0cbb2787b9e1> /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib
       0x191d25000 -        0x191d2ffff  libGFXShared.dylib arm64  <d70b4c465ebe3a9e98c2b82ccf8fb7d7> /System/Library/Frameworks/OpenGLES.framework/libGFXShared.dylib
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       0x191d39000 -        0x191d39fff  libmetal_timestamp.dylib arm64  <03e8a64b598935f590892cb3f6a6704c> /System/Library/PrivateFrameworks/GPUCompiler.framework/libmetal_timestamp.dylib
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       0x191d9c000 -        0x191da6fff  OpenGLES arm64  <d789825652ac31c78f1007fed0ff3777> /System/Library/Frameworks/OpenGLES.framework/OpenGLES
       0x191da7000 -        0x191dcbfff  CoreVideo arm64  <ba0cdc15666b32f7be6f9fcd1528c7f1> /System/Library/Frameworks/CoreVideo.framework/CoreVideo
       0x191dcc000 -        0x191dcefff  OAuth arm64  <56d873bb47973452a9fc41ee777f8d42> /System/Library/PrivateFrameworks/OAuth.framework/OAuth
       0x191dcf000 -        0x191e0bfff  Accounts arm64  <28b18304843b3350a829aaedc92b5a54> /System/Library/Frameworks/Accounts.framework/Accounts
       0x191e0c000 -        0x191efefff  libiconv.2.dylib arm64  <1db28a41c3a83551aad361a4e072fe33> /usr/lib/libiconv.2.dylib
       0x191eff000 -        0x19204cfff  CoreAudio arm64  <34f7497d8b43383cb4021a8300855c94> /System/Library/Frameworks/CoreAudio.framework/CoreAudio
       0x19204d000 -        0x192050fff  UserFS arm64  <b8862d7a16d83d22954ab81b89743009> /System/Library/PrivateFrameworks/UserFS.framework/UserFS
       0x192051000 -        0x19215efff  CoreMedia arm64  <b64e8d32c5533e7898e9a631ecda513a> /System/Library/Frameworks/CoreMedia.framework/CoreMedia
       0x19215f000 -        0x192165fff  libcupolicy.dylib arm64  <5311b060110139d5ae3b1325e855e7da> /usr/lib/libcupolicy.dylib
       0x192166000 -        0x1921effff  CoreTelephony arm64  <ebd51642ac29349694e03daa4aeac43e> /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony
       0x1921f0000 -        0x1922fdfff  libFontParser.dylib arm64  <a7990cbb692b36a49280088c24b9ec2a> /System/Library/PrivateFrameworks/FontServices.framework/libFontParser.dylib
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       0x19238e000 -        0x19238efff  FontServices arm64  <5a9fc52851583aac96b6745cf7aae370> /System/Library/PrivateFrameworks/FontServices.framework/FontServices
       0x19238f000 -        0x1924dbfff  CoreText arm64  <851f6498f833335fb35ec9e67515c2fb> /System/Library/Frameworks/CoreText.framework/CoreText
       0x1924dc000 -        0x1924f6fff  ProtocolBuffer arm64  <94fc56d3e01136a2aaf8c207e2761696> /System/Library/PrivateFrameworks/ProtocolBuffer.framework/ProtocolBuffer
       0x1924f7000 -        0x19251ffff  PersistentConnection arm64  <35abdca5445d3af9bf40770e5416df79> /System/Library/PrivateFrameworks/PersistentConnection.framework/PersistentConnection
       0x192520000 -        0x192526fff  DataMigration arm64  <119f715b07bd3046ad1cef0bb035440c> /System/Library/PrivateFrameworks/DataMigration.framework/DataMigration
       0x192527000 -        0x19297bfff  AudioToolbox arm64  <ccc5fb161ee537e3b0c26110edee2ecd> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox
       0x19297c000 -        0x192b59fff  QuartzCore arm64  <416a878f23c636fc8d81404ff7dd4fdc> /System/Library/Frameworks/QuartzCore.framework/QuartzCore
       0x192b5a000 -        0x192b60fff  Netrb arm64  <099e2ab3ae8e3a498e0e0a0f17e128a7> /System/Library/PrivateFrameworks/Netrb.framework/Netrb
       0x192b61000 -        0x192b71fff  libcmph.dylib arm64  <903e25509e37307e99af188ed1272633> /usr/lib/libcmph.dylib
       0x192b72000 -        0x192b92fff  libmis.dylib arm64  <af76a704dc8631deb7f9eb778f089d81> /usr/lib/libmis.dylib
       0x192b93000 -        0x192c84fff  LanguageModeling arm64  <c49bcbbac36d34308151388e8bf1a718> /System/Library/PrivateFrameworks/LanguageModeling.framework/LanguageModeling
       0x192c85000 -        0x192d7bfff  ManagedConfiguration arm64  <d1f359c8a97b3c89a7b8ba8cfa763db3> /System/Library/PrivateFrameworks/ManagedConfiguration.framework/ManagedConfiguration
       0x192d7c000 -        0x192d92fff  libmarisa.dylib arm64  <96c399295cb13cad829c93b5c29f0661> /usr/lib/libmarisa.dylib
       0x192d93000 -        0x192e63fff  ProofReader arm64  <bb56e538be8835199a0abd263adb75f8> /System/Library/PrivateFrameworks/ProofReader.framework/ProofReader
       0x192e64000 -        0x192e6efff  MediaAccessibility arm64  <17fe4943f5363a278cf9868db2623b9d> /System/Library/Frameworks/MediaAccessibility.framework/MediaAccessibility
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       0x1942df000 -        0x1954d4fff  WebCore arm64  <71643ec5512a3bf5b4b3926bff6107a0> /System/Library/PrivateFrameworks/WebCore.framework/WebCore
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       0x1979e7000 -        0x197a6cfff  CoreLocation arm64  <b5ea2a9b0de1305d804bce89c81d3d30> /System/Library/Frameworks/CoreLocation.framework/CoreLocation
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       0x197e3f000 -        0x197e82fff  AuthKit arm64  <51f9f14dab343736aba127fc4c2fef4d> /System/Library/PrivateFrameworks/AuthKit.framework/AuthKit
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       0x197e89000 -        0x197f5dfff  MediaRemote arm64  <0c379e82aee7397a84dd5adc9fc639c1> /System/Library/PrivateFrameworks/MediaRemote.framework/MediaRemote
       0x197f5e000 -        0x1980e2fff  MobileSpotlightIndex arm64  <85e4085a14363a6d9104565abe0d8ac9> /System/Library/PrivateFrameworks/MobileSpotlightIndex.framework/MobileSpotlightIndex
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       0x198140000 -        0x19815bfff  libresolv.9.dylib arm64  <1d7a61761a42344b850150806bcb08a9> /usr/lib/libresolv.9.dylib
       0x19815c000 -        0x198171fff  ApplePushService arm64  <0af0362080153e92bf29b1b964417848> /System/Library/PrivateFrameworks/ApplePushService.framework/ApplePushService
       0x198172000 -        0x1981c1fff  ContactsFoundation arm64  <9c723b6eab2d362a8288b4bf796d593e> /System/Library/PrivateFrameworks/ContactsFoundation.framework/ContactsFoundation
       0x1981c5000 -        0x198278fff  Contacts arm64  <83282249a77f31fc947407d24c5d1fc9> /System/Library/Frameworks/Contacts.framework/Contacts
       0x198279000 -        0x1982c2fff  CoreSpotlight arm64  <d82a303ae98f311ea76c1b2eb85ab42d> /System/Library/Frameworks/CoreSpotlight.framework/CoreSpotlight
       0x1982c3000 -        0x1982ebfff  vCard arm64  <746d1b3a7006325587116c3d938cdc9b> /System/Library/PrivateFrameworks/vCard.framework/vCard
       0x1982ec000 -        0x198378fff  VoiceServices arm64  <581c48f7f95b38b7ad93bacd582afdda> /System/Library/PrivateFrameworks/VoiceServices.framework/VoiceServices
       0x198379000 -        0x1983c8fff  SAObjects arm64  <6f3a056e36c23779a775adf39afb410a> /System/Library/PrivateFrameworks/SAObjects.framework/SAObjects
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       0x19860b000 -        0x198627fff  AppleIDSSOAuthentication arm64  <51e91fc9170931599eb79c311b1adc09> /System/Library/PrivateFrameworks/AppleIDSSOAuthentication.framework/AppleIDSSOAuthentication
       0x198639000 -        0x1986acfff  AppleAccount arm64  <d5700b7d4b8d34908eebe06d140d797a> /System/Library/PrivateFrameworks/AppleAccount.framework/AppleAccount
       0x1986ad000 -        0x1986b1fff  CommunicationsFilter arm64  <88fe96f3e9bd3c928f0ce3b9e3609f22> /System/Library/PrivateFrameworks/CommunicationsFilter.framework/CommunicationsFilter
       0x1986b2000 -        0x1986d7fff  ChunkingLibrary arm64  <a5610db4cde33d18849623976460f536> /System/Library/PrivateFrameworks/ChunkingLibrary.framework/ChunkingLibrary
       0x1986d8000 -        0x1986e3fff  CaptiveNetwork arm64  <c0837a51c56b3485ae0626bb30d32959> /System/Library/PrivateFrameworks/CaptiveNetwork.framework/CaptiveNetwork
       0x1986e4000 -        0x198712fff  EAP8021X arm64  <ae8a47ef84693d42b074b97abf71135e> /System/Library/PrivateFrameworks/EAP8021X.framework/EAP8021X
       0x198713000 -        0x19871afff  AssetCacheServices arm64  <ec37af1c81113876b331f36c6263a725> /System/Library/PrivateFrameworks/AssetCacheServices.framework/AssetCacheServices
       0x19871b000 -        0x1987e3fff  MMCS arm64  <657b5caffa2a3e709e0396e623cbd71e> /System/Library/PrivateFrameworks/MMCS.framework/MMCS
       0x1987e4000 -        0x198814fff  MobileWiFi arm64  <2d66ac36f09f39c4ac0722873331d039> /System/Library/PrivateFrameworks/MobileWiFi.framework/MobileWiFi
       0x198815000 -        0x198857fff  ContentIndex arm64  <4e6fa126997f30cb8c0caf9ae4f0e63b> /System/Library/PrivateFrameworks/ContentIndex.framework/ContentIndex
       0x198858000 -        0x198860fff  MobileIcons arm64  <f8f2b50fa7de361bac6b63f8e47e6d94> /System/Library/PrivateFrameworks/MobileIcons.framework/MobileIcons
       0x1988b5000 -        0x1988e5fff  Bom arm64  <32b8ff158e563292bb052e36c903dbdd> /System/Library/PrivateFrameworks/Bom.framework/Bom
       0x1988ef000 -        0x198940fff  FTServices arm64  <14e43a8755c33c8196d34ba513cf77d3> /System/Library/PrivateFrameworks/FTServices.framework/FTServices
       0x198941000 -        0x19899ffff  CoreDAV arm64  <efdd83aef54e34e386a8be336b6a9f52> /System/Library/PrivateFrameworks/CoreDAV.framework/CoreDAV
       0x1989af000 -        0x1989c5fff  UserManagement arm64  <40ac399d20df3c0e9c438d1c212beb4f> /System/Library/PrivateFrameworks/UserManagement.framework/UserManagement
       0x1989c6000 -        0x198a8dfff  CorePDF arm64  <4236b129a3d43c9386271a2d6486d093> /System/Library/PrivateFrameworks/CorePDF.framework/CorePDF
       0x198a8e000 -        0x198ac2fff  iCalendar arm64  <5bb9085e143b383db506a50934df271c> /System/Library/PrivateFrameworks/iCalendar.framework/iCalendar
       0x198acb000 -        0x198b29fff  CalendarFoundation arm64  <d9d4b20dd9623e4e8831ca80a9f94797> /System/Library/PrivateFrameworks/CalendarFoundation.framework/CalendarFoundation
       0x198b2a000 -        0x198b30fff  IncomingCallFilter arm64  <f4bda41bf4f93920862f82802df297f9> /System/Library/PrivateFrameworks/IncomingCallFilter.framework/IncomingCallFilter
       0x198c2c000 -        0x198cc5fff  CalendarDatabase arm64  <bceaf54d26dd316f90d4c0a8758be5a7> /System/Library/PrivateFrameworks/CalendarDatabase.framework/CalendarDatabase
       0x198cc6000 -        0x198d0bfff  CalendarDaemon arm64  <1c5280642d4d365cac44cbb0cb2127af> /System/Library/PrivateFrameworks/CalendarDaemon.framework/CalendarDaemon
       0x198d0c000 -        0x198ddcfff  EventKit arm64  <dc05fdb1cdbc3770bcb4fe7f24fefeee> /System/Library/Frameworks/EventKit.framework/EventKit
       0x198ddd000 -        0x199112fff  WebKit arm64  <cf746428b8bc3641b821a3e6fc8def1a> /System/Library/Frameworks/WebKit.framework/WebKit
       0x19915f000 -        0x1992a3fff  ContactsUI arm64  <31a25a9458cf380fbc3f78c00d447586> /System/Library/Frameworks/ContactsUI.framework/ContactsUI
       0x1992a4000 -        0x199a75fff  ModelIO arm64  <7e43f160826d3d9ca2b7b54691290403> /System/Library/Frameworks/ModelIO.framework/ModelIO
       0x199a76000 -        0x199a7cfff  DAAPKit arm64  <fbf1424a544b3c4fb6a917d95bc7eaf0> /System/Library/PrivateFrameworks/DAAPKit.framework/DAAPKit
       0x199b9d000 -        0x199bcdfff  GLKit arm64  <19bc88c1484837f8917d1b6ebeb8f432> /System/Library/Frameworks/GLKit.framework/GLKit
       0x199bce000 -        0x199e3efff  MusicLibrary arm64  <850bdba677af3ac7ae56ec7959064b3d> /System/Library/PrivateFrameworks/MusicLibrary.framework/MusicLibrary
       0x199e7e000 -        0x199f55fff  AddressBookUI arm64  <381f7b67a71c3e57a975bbc88e3b2046> /System/Library/Frameworks/AddressBookUI.framework/AddressBookUI
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[Nikolay]

Hello Namysław,

I've tested a similar scenario in a sample application from my end, but I wasn't able to reproduce the problem. Please have a look at the attached project and provide more information about your setup so we can investigate it.

 

Regards,
Nikolay
Progress Telerik

[Yulia]

I have similar logs. It's interesting that on most devices, the app is working fine, but on some devices the application crashes

[Stefan Nenchev]

Hi, Yulia,

Would it be possible to share more information on the scenario in which you observe the exception? Is it similar to the one discussed earlier in this thread? Do you have a sample application which can be used to reproduce the behavior(even if it might require some time and testing on different devices from our side)? Did you have a look at the application Nikolay has attached? Do you observe any issues with it?

Any additional information will be appreciated.

Regards,
Stefan Nenchev
Progress Telerik