over the last few weeks, a weird Citrix issue started to occur on several completely independent Citrix Session Hosts (from different AD domains). Some details about the environments:
Server 2019 based Hyper-V architecture
Virtual Citrix Session Host (Published Desktop) with fully patched Windows Server 2019 and VDA 7 2012
The issue is as follows:
In the event log of the Session Host, an CtxUvi error with ID 1005 is being logged: "The Citrix Universal DLL Injection Driver has encountered an unexpected error."
Right after that, an error 1003 (also from CtxUvi) is being logged: "The Citrix Universal DLL Injection Driver has detected an integrity error during process creation. The Citrix Universal DLL Injection Driver has been disabled."
From now on, all users who freshly log into the desktop just receive a blank grey screen as soon as Citrix Workspace is creating the session window.
After a server reboot, everything works normal again.
Some observations / details:
The issue is occuring about once every week (per Server) but there is no temporal pattern to be found.
The CtxUvi crash is always being caused by a user who's logging off, so the issue always occurs either before lunchbreak or in the evening (~5 pm). But it's never the same user who's causing it.
Apart from the grey screen, the session actually works. It is, as an example, possible to blindly create a text file on the desktop (with keyboard shortcuts), and the file actually gets created.
Like I said, several customers are affected.
Does someone have any ideas how to fix this or tips for further diagnosis?
Question
Rene Balz1709162432
Hi,
over the last few weeks, a weird Citrix issue started to occur on several completely independent Citrix Session Hosts (from different AD domains). Some details about the environments:
The issue is as follows:
Some observations / details:
Does someone have any ideas how to fix this or tips for further diagnosis?
Best regards
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