At login, the process pfwsmgr.exe crashes which stops the user login. Only a black screen or background is visible at this point with no Taskbar, Start Menu or Desktop icons
In the Windows Event Log, a .Net error is reported in the Windows Event log similar to the one below.
Description: The process was terminated due to an unhandled exception. Exception Info:SystemAccessViolationException
This issue is under investigation by Ivanti Support.