Hello.
I have tried to turn on the blur background feature, but nothing happens after checking the box.
I don't use software like dynamic wallpapers, and have tried reinstalling the software via purge, but the problem persists.
This is the interface displayed after turning on the blur background, you can see there is no blurring effect at all:


Windows 10 1903
Fences 5.04
Can you please assist me, thank you.