At work I've had issues with the Start Bar not showing any/most programs and centering the one program that does show up (even though I have it left aligned). Then when I mouse over it, it'll try to move to where it should be causing it to jump around and be unclickable.

I've also had the file explorer just stop working entirely.

This is on a pretty powerful dev laptop, so it's not lack of resources.

That being said I've never heard of anyone else having that issue so it seems rare.