Wallpaper/Live Wallpaper defaulting

[DieDante]

I have a live wallpaper app I use, device keeps resetting to the default bubble wallpaper (S20 Ultra)

I have allowed background running for the app and switched off any device care/battery app killing.

Anyone else getting this or similar!?

[HebrewHamma]

This has happened to me since the day I got the S20+. It's frustrating as heck. I set the live wallpaper and lock screen. The next day it's back to some stock live wallpaper from Samsung. It's infuriating. I still haven't figured out how to permanently fix it. 

[Limel]

Ditto. Its so annoying to have paid for live wallpaper and not be able to use it.  My phone also keeps resetting my default ring. Extremely frustrating.