Thanks for the response and updates.
I've attached screenshots of the editor and in game that show Al-Shamal and (Umm-Salal in editor) that have incorrect stadiums, so there is something going wrong somewhere (the stadium move dates in the editor are years old) - both of these stadiums never ended up being built as part of the 2022 Qatar World Cup bid, so should be removed from database in general anyway.
Al-Shamal play at Al-Shamal SC Stadium in real life which has a capacity of about 5000 - Which is the Al Shamal Club Stadium in the editor which is correct, however, the game puts them in Al-Shamal stadium, that has a capacity of 45,120 - this stadium was never built. Probably because stadium move is enabled?