Game crashes when battles end

So I recently downloaded the most recent build of the game (1.2.3). Not wanting to patch, I just moved my save files from 1.1.6 onto the 1.2.3 core. It mostly works fine, except for the fact that the game crashes every time I catch or defeat a Pokemon. Immediately after the battle, I get an error message saying that the game encountered “a serious problem” and it just straight up shuts down.

Can someone tell me what’s going on, and how to fix this dilemma? I’m using a Macbook Pro with Yosemite 10.10.5.

2 posts were merged into an existing topic: Can’t Battle or Receive Pokémon?