Editing .sav breaks in battle 3d rendering

[puroidrogeno]

As per title, if you do any edit to the save file and reload it the 3d rendering completely breaks in battle, reverting to the classic one.
Only a huge sprite is positioned backwards in the middle of the screen covering most of the screen.

Overworld has no issue.

[puroidrogeno]

Update: entering the game after loading the changed update file, then force closing the emulator. Finally relaunching it fixes the issue