Not sure what is going on with the edit window display

I started up WL and instead of my normal, saved window display I got a display with the file window taking up most of the screen and the rest of the various panels missing. No effects panel, no file panel, no time code panel etc. So I restarted WL and all was back to normal. I am running WL 11.1 on a Windows 10 PC. Any thoughts???

I guess a damaged setting file.
Using the function “Default workspace” should solve the problem.

That is what I did before restarting WL. Thanks for the reply.