VDA may randomly experience a BSOD with BugCheck code 0x96 INVALID_WORK_QUEUE_ITEM
The issue is seen after the installation of 2203 Cumulative Update 4.

A component update to CVAD CU4 that fixes the issue is available on the Citrix Virtual Apps and Desktops 7 2203 LTSR, Cumulative Update 4.

Problem Cause

The issue is been identified and is being tracked under CVADHELP-24383.

• VDAs might experience a fatal exception on picadd.sys and display a blue screen with bug check code 0x96. [CVADHELP-24383]
  
  https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/2203-ltsr/known-issues

CVAD 2203 CU4 VDA may experience BSOD With BugCheck code 0x96 INVALID_WORK_QUEUE_ITEM