I have the same problem and it happens quite often actually. I have been restarting explorer.exe so many times DAILY!
I noticed the issue happen when screen goes to sleep then I move the mouse to use my PC again.
I have my monitors connected via DisplayPort 1.2.
Sometime the taskbar change to show only 2-3 icons max, and all others are hidden
But, some other times the taskbar completely disappear, like no clock or date or anything lol
I wonder if brave broswer has something to do with it? can anybody confirm if brave is installed in their PC since it's one of those icons who always remain after other icons disappear.
Can we please get a fix Microsoft, if the issue is widespread maybe it's a good time to take action on it?
Thanks