i think it happens if the editor is not interacted with for a while? maybe after a night when the pc went to sleep?
i think it can move to another screen during turning on/off screens.
i think it started during 2023.2.0bx but maybe its project related.
it wont show till u click on a project and then it will be on the screen persistently, cant be interacted with.
closing unity related programs gives no change.
anyone else got this problem or knows how to fix it without restarting?
Looks like a stranded window from the Unity process.
You can usually go into the task mangler (or activity monitor on MacOSX) and blow away all the Unity processes you find, or at least the most-recently added one.