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: