Hello,<br> <br> we are experiencing a randomly occurring crash of Clarius (v.1.10.1) during a conventional IV sweep test, which runs somtimes flawlessly . &quot;An unhandled exception of type 'System.ArgumentNullException' occurred in PresentationFramework.dll; Value cannot be null&quot; is reported, occurring in Clarius.exe.<br> Any hint why this is happening? Potentially is it possible to track/debug the cause?<br> <br> Thanks in advance.