I have a strange problem with Multi Monitor Wallpapers.
I have 3 monitors each with a different wallpapers all is fine till I put the computer to sleep, most of the time upon waking the wallpapers don't reappear as they were before going to sleep.
If I go to the Desktop Wallpaper setting page and re-apply the wallpapers as they should be they will not change. The only way to change them back to the way they should be is to sign out and relogin to my computer.
I have attached some pictures to show what is happening
Sorry about the delay on responding, I had tried your answer quite awhile ago it had no effect. But I think I found the cause of this issue, cables. The position of my computer to monitors meant I needed different length cables one needed to be 3 meters while the other two I could get away with 2 meter length, problem was the only 3 meter cable I had on hand was a HDMI the others were DisplayPort. I finally got around to buying a 3 meter DisplayPort cable plugged it in and vola no more wallpaper issues.