BUG in copy text

[SIMA]

Good day,

the viewer (2017 R3) crash if you try to copy the selected text.

1. select text in viewer

2. open the context menu 

3. click on 'Copy'

You have the exception:

System.NullReferenceException occurred
  HResult=0x80004003
  Message=Riferimento a un oggetto non impostato su un'istanza di oggetto.
  Source=Telerik.Windows.Documents.Fixed
  StackTrace:
   at Telerik.Windows.Documents.Fixed.FormatProviders.Old.Pdf.Utils.Helper.get_Dispatcher()
   at Telerik.Windows.Documents.Fixed.Selection.TextSelection.GetSelectedText(Object param)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart(Object obj)

Thank you.

[Dess | Tech Support Engineer, Principal]

Hello, Mauro,  

Thank you for writing. 

I have logged it in our feedback portal. You can track its progress, subscribe for status changes and add your comments on the following link - feedback item.

I have also updated your Telerik points.

Currently, due to the specificity of the issue, I am unable to suggest a suitable solution. We will do our best to introduce a fix as soon as possible.

Should you have further questions I would be glad to help.

Regards,
Dess
Progress Telerik