Full numbered version of Windows ? ( use winver.exe for that info )
21H2 Build 19044.1766
Fences version ( on the Fences Config screen click on about for the version # )
I uninstalled it but I just installed today and it was version 4 - I assume Latest & Greatest since OD downloaded it.
One other thing on the Config screen click on Layout and Snapping tab
for shapshot layouts you can restore too - try that ?
As I said I uninstalled it. I did look at all the layout options and changed a few - nothing brought the MIA back.
I even tried show and hide desktop