I am still experiencing this issue as of 13/05/2021.
Multiple customers experiencing this, it's random. Did anyone find a fix for this yet? I see some people mentioning to just roll back to release 2004 of FSLogix should I try this?
I am also going to try the registry key people who have previously mentioned CleanUpInvalidSessions.
Did have one customer who was running 2 Citrix VDAs and this was happening daily have since removed a VDA and increased the Ram/CPU of the single VDA to match that of 2 VDA servers. And it doesn't happen anymore? Yes, I have concurrent sessions enabled.
Weird...