We also saw that if you deleted the users writable volume, it would also fix the black screen issue for a period of time (Seems like weeks if not months, unknown on timeframe), but we are thinking something in the writable volume is getting captured which is causing the issue. We are seeing that if the user disconnects and reconnects that the camera works again (I believe this was the same USB redirection issue and the registry key they gave us helped with that). VMware gave us a workaround for that (the registry key basically just bypasses all Horizon Smart Policies and enables USB redirection). We are having several issues, one is that the Horizon client is showing 'USB Unavailable'. For some users it is displaying the black screen like you are describing. The reason I mention both the disconnect/reconnect and writables volumes is we are seeing the same type of behaviors in MS Teams and cameras. As a leading technology innovation company, Lockheed Martins vast team works with partners around the world to bring proven performance to our customers toughest challenges.

Vm horizon