Board Thread:Support Requests - Designing Your Wiki/@comment-4234382-20200820035614/@comment-9559731-20200823060448

I had the same problem and posted it in the german feedback forum. Then a Fandom helper was running the MassNullEdit-Script on my wiki and almost all galleries got fixed by this. Seemed to be a cache problem, but he said, the problem usually should get solved automatically within a few days.