Black Screen on Terminalserver 2022 when joining through "Join with options"

Hi,

we are experiencing an issue on three of our servers: when using “Join with options”, the desktop is visible for about one second, after which the screen turns completely black.

The Backstage view and Console access are working fine, and there are no known differences between these three servers and our other servers where everything works as expected.

When checking the original RDP session, we can still move the mouse and interact with the session via ScreenConnect, but in ScreenConnect itself we only see a black screen.

Has anyone encountered this issue before or has an idea what could be causing it? There seems to be a issue with clipboard aswell on these servers. We are on: 26.1.25.9592 on premise.