I suddenly have the same, only with the Object Lister, see this thread.
I re-installed Windows 10 Pro on my laptop and learner's PCs. I removed all Autodesk software as thoroughly as possible. I downloaded the latest version of Alias 2023. The problem persists. This issue is rather perplexing. Why did it occur a couple of weeks ago out of the blue?
See the rail surface tool, for example. Next time, it will be another tool window. It always changes.
Have you got Anti Alias Super sampling turned on? This seems to be giving me some menu graphics errors when it is enabled?
No, it's not turned on.
Yeah, thanks again for you and Michael helping out.