Animated items in a resource pack crash the game

I wanted to finally get a resource pack to work with supported animated items (ex. clocks, compasses etc.)

Instead, it crashed (Like last time, even though it was thought to be fixed) even after I used the unstitcher. I don't want to completely remake the animated items, because it took a very long time to do so, and will take even longer if I have to make separate files for them.

Steps to Reproduce:
1. try making a resource pack with animated textures
2. use it in minecraft