Board Thread:Support Requests - Designing Your Wiki/@comment-39949541-20200311011637/@comment-9605025-20200311054741

You mentioned that this doesn't happen on your other wikis. Which wikis does this not happen on? What screen size do you have? Fandom intentionally hides the background image for smaller screens. That being said, I don't think this would be it. If it was, you shouldn't be seeing it on other wikis unless those wiki have explicitly reinstated the image via site CSS.