For some reason, when Fences is installed, randomly the desktop background start to become black, as if the mouse cursor and Fence's screen were a brush in a drawing application.
Video of the problem:
https://1drv.ms/v/s!AvslyXa_lwH4geY4VMdfSntxGStzSg?e=HonkIX
My system:
Windows 10 Enterprise
Version: 2004
Compilation: 19041.329
Fences: 3.09
I'm using PowerToys V0.190 with FancyZones activated