Hey guys,
I found out about this battle crash glitch by accident.
First, you have to create an NPC. I gave that NPC a Mew, holding a Colbur Berry.
Then, I gave myself a Weavile with the Move Knock Off and some random other moves.
I battled the trainer, and when I try to use any of the moves I have, the battle just crashes.
I found out, that this only works, if:
1) The Pokemon you send out has a move that works with the type-weakening berry of the opponent. (in this case, Knock Off + Colbur Berry - It also works with any other move though. I tried Giga Drain against a Rindo Berry aswell.)
2) The Pokemon holding the berry has to be weak to that move. (example: Magikarp holding a Rindo berry to weaken grass moves will trigger this glitch. Magikarp holding a Passho berry, which weakens Water moves won't trigger this glitch.)
If you successfully trigger this glitch, after clicking a move, it will send you back to the battle select menu and when trying to use a move again, it will kick you out of the battle, displaying this message:
https://i.gyazo.com/717a197154ed3c955b1 ... 5fc119.pngI hope you can fix this glitch soon, as I'm not sure, if this glitch also happens on actual people on a server.