Win11 Task Bar Icon Problem

 Today my laptop started showing the wrong icon. 

 

Is it due to Open Shell?

How about a reboot?
Rebooting made a difference.  Firefox and Screenhunter icons came back.  Thunderbird is still wrong.

Lets delete OpenShell.  Then Reboot.  And the icon is back

And lets reinstall Openshell.  From Ninite.com  V4.4.195 And reboot. And the icons are gone again.  Bugga.

Lets do another reboot.  Bugga.

And uninstall Openshell again. Reboot and the icons are back.

Turns out I have WIN 11 Home version 23H2   64 Bit
Installed 6-1-2022
OS Build 22631.4602
Windows Feature Experience Pack 1000.22700.1055.0

So I wonder if Ninite have the most recent version of Openshell. 
https://github.com/Open-Shell/Open-Shell-Menu  shows the latest rev at 4.4.195
So Ninite is up to date.

Did another couple of reboots and the icons vanish again.
Feels like some kind of restart race condition

And rebooted and they are back

Possibly I need to rebuild the icon cache

https://www.tenforums.com/tutorials/5645-rebuild-icon-cache-windows-10-a.html

Now try SFC /scannow

Windows-X
Terminal (Admin)
Then type sfc /scannow and it checks windows files