ArgumentNullException thrown from DocumentPosition.Finalize()

[Evan]

This exception occurred while I was using the RadRichTextBox, and it crashed my application.  I have not been able to reproduce it since.  I am on RadControls for WPF version 2012.3.1017.40.

ShellApplication.HandleException : InteractionDesktopClient: App Domain Unhandled exception
Top Exception
Type=System.ArgumentNullException
Source=mscorlib
Message=Value cannot be null.
StackTrace:
   at System.Threading.Monitor.ReliableEnter(Object obj, Boolean& lockTaken)
   at System.Threading.Monitor.Enter(Object obj, Boolean& lockTaken)
   at Telerik.Windows.Documents.DocumentPosition.Dispose() in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Documents\Core\DocumentPosition\DocumentPosition.cs:line 2626
   at Telerik.Windows.Documents.DocumentPosition.Finalize() in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Documents\Core\DocumentPosition\DocumentPosition.cs:line 2650

Is this a known issue?

Thanks,
Evan

[Boby]

Hi Evan,
This is known issue showing sometimes when the spell checker is enabled. It is already fixed in the 2013 Q3 SP1.

Please, excuse us for the inconvenience. Don't hesitate to contact us if you have other questions.

Greetings,
Boby
the Telerik team