X2GoClient version 4.0.5.0 (QT - 48.8.6)

OS: Windows 10 64 bit

X2Go Client crashes when:
> Session Preferences - Opening and editing and closing
> Session Preferences - Opening, viewing but not editing and closing
> Help > About X2Go Client
> Opening and then dismissing any dialog box from X2Go Client.

Visual Studio debugger shows the following exceptions:

   - Unhandled exception at 0x00BCDAA6 in x2goclient.exe: 0xC000041D: An
   unhandled exception was encountered during a user callback.
   - Exception thrown at 0x00BCDAA6 in x2goclient.exe: 0xC0000005: Access
   violation reading location 0x00000004.