this happened several weeks ago and I've tried many solutions.
I even reset my device but it just simply did not work.
when I try to change my lock screen wallpaper, it just goes grey in the display, and the loading sign as seen in the picture below
this works if I choose pictures from the 'recent image' tab but if I use the same picture it does not.
I tried to manually change it in the file explorer but it says to try a different photo we can't set this one as the lock screen.
but somehow the background works fine without any problems.
pleas help this is getting very frustrating