Some things have been happening to me lately too.
For some reason it was not letting e into the battle it kept on saying "event in progress"
The autos were still alive but we had won the battle. Every thing was fine on my friend's screen though. We were on a call and he was already out of the battle but I was still in it, it was like my screen was behind like like 30 seconds and glitchy.
This one I walked into the battle and not a split second later I won. So I don't Know if I did not get any stars because i didn't do any thing in the battle or what...