Help me with this glitch
So this is my first ever post on reddit and I genuinely need help with this battle.
For the context, I use my boy on my android and this is elite redux version 2.65
The glitch or the problem is that I can't get past this battle. Whenever I attack mega-Granbull, his ability activates which makes my pokemon or Steven's pokemon switch and then the screen gets stuck.
I have been trying for several days and I don't wanna lose this save file as it has 80 hours of gameplay and 8 whole boxes of pokemon.
I had tried various teams and attacks to not let that ability awaken, I finally ohko-ed this granbull with my mega-tinkaton with steel gem and gigaton hammer. And the first pokemon that goes out is mega-swampert with torrent fist, ice punch, seismic fist and jet punch and the other is empoleon with steel gem flash cannon, water pulse, nasty plot and dark pulse.
I have tried resetting the game as well.
I genuinely don't know what else I could do hence I'm making this post as a plead for help.
Please help me with this save file, fellow pokemon lovers.