Same issue. Insane that something as important as the menu bar is rendered unusable. The only way to fix on my MBP M1 is to open the screen, which is a real pain because I have it in a holder vertically. Any time the screensaver kicks on and the screen locks is when I have the issue. So it either has to be:
- Screen saver
- Screen lock
- Monitor going to sleep
My monitor is connected via thunderbolt as it is a Samsung that is also charging my laptop.
I feel bad for people on the minis, you would just likely be totally screwed. I tried to remove the com.apple.systemuiserver.plist file in my Library preferences and kill the SystemUIServer as some older threads suggested, and this did not help.