It seems like you can't see the vanilla model also. Is this problem solved if you remove epicfight?

Yes, although this problem happens sometimes, restarting minecraft works fine (sometimes), but other times it fails.

Well... if the animated model is only invisible, I'd inspect this problem. But since the vanilla model is also invisible, I can't find any clue that this problem comes from my side.

I will do more tests, don't worry

Do you know if there is incompatibility with mods like Optifine, Rubidium...etc.

I entered the world again and the game closed.
Here is the last log: https://mclo.gs/MOkZY4g
It's the first time it happens to me, now I start without problem.