FE_Builder_GBA Battle Animation Freeze

#1

Posted this question under FBuilder but I wish to this fixes soon. So I’m testing the FE7 Rom and when Lyn is in her battle animation and the game just freezes. I didn’t mess with her animations or anything and I’ve reset it multiple times but it is still happening. Do you know how to fix this problem?
https://gyazo.com/932fa8232e93f7d072f6b680659110c0
Her animations are untouched:
https://gyazo.com/b5a9c05ad92b0086b240255674671f8a
https://gyazo.com/4b275c3915cc8b2eecfc668da410d112
I added two custom animations to a custom class in the game. Maybe that’s the problem?
Edit: I did mess with Lyn’s base stats. Is that a problem?