I have an ASUS ZenFone AR with android 7.0. After sending back to ASUS for repairs to the camera, I can't set a separate images for my wallpaper and lock screen. I hold my finger on the screen, click wallpaper, choose the photos I want. It acts like it's working and accepted but when I lock my screen and open it, both home and lock screen are the same image. I cleared caches, but still no luck. I'm using a ZenUI theme but only applied it for icons. But even if I use the stock UI theme, it still won't let me do separate images for lock and home. I used to be able to do this easily. Any help or advice is much appreciated.