Yes, I realised in the meantime, and also fixed the problem.
Sorry for posting here.
I think I currently have a similar problem, but my menu is stuck in the middle, my windows are mostly to the left of it, it’s barely usable. it looks as if its a mobile version. It has been like this since yesterday.
So you’re saying it fixed itself?
My editor’s left menu (that can be collapsed) is positioned in the middle of the screen when I want to add new post. Besides that, it all looks normal.
The editor then looks like as if its for mobile version, some windows are seen on the right side of the screen, I’m sorry I can’t show you the print screen.