All modded armour and animations etc do not work properly when I do things like crouch or etc

[BlazingGreenFire]

I have a bunch of mods in a modpack and I don't know what but one mod is screwing with like the accessories in other mods and animations and all that. Like whenever I crouch whatever I'm wearing if it's like modded or something it will act as if I'm not crouching and stay the same and it's kinda annoying. I will give a few screenshots and the list of mods I have and yeah.