Board Thread:Support Requests - Designing Your Wiki/@comment-4234382-20200820035614/@comment-9605025-20200820040738

Other users have experienced issues with galleries not displaying correctly on UCP. Someone did some digging and has come to the conclusion that it is due, at least in part, to a failure of certain CSS to load. It is not clear what causes this failure but only staff can fix it. I suggest you so that they will know it is impacting other wikis as well. Hopefully that will place a higher priority on the issue and thus expedite its resolution.