No problem! I appreciate your responsiveness and willingness to improve. Best wishes in future debugging!
P.S, if it's possible to check the player's resolution, would it also be possible to make the screen go up by that amount? For example, x resolution is 1080 px and the wallpaper starts at the bottom. Move it up by 1080 px and it will have cleared the screen. If you have a set animation, see if you can amplify (multiply) it by the resolution to make it dynamic for each system. I'm not sure what engine/language you're using, but hopefully this can help.