When doing pet battles, everything works fine the first time I battle. However, the second battle there will be no UI for the battle. A /reload will get everything working and it will likely be fine for many battles after that. Quite strange, I do use Rematch. Not sure who is to blame for this weird behaviour.

Are you still having this issue? I run rematch as well but cannot get it to happen. I did 4 pet battles in a row with no issues.

Yes thank you seems fine now!