Context menu that disappears on the Windows 11 desktop.

Hello, starting today I'm having problems with my context menu on the Windows 11 desktop or on desktop icons (but not in File Explorer). It disappears after a few seconds, even when I'm not doing anything. I can fix the problem by going to the Task Manager and then restarting File Explorer... but it's quite annoying to have to do this every time I start Windows 11. Is there an update or a workaround to avoid having to restart File Explorer every time? Thanks in advance! Alex