Bone rotates more than usual in roblox studio FBX ANIMATION

Hey there! I’m currently developing a hyena for my game, i was starting on the attacks, i animated a bite but, when i first imported it on roblox studio, the jaw rotated more than usual when closing the mouth.


Blender animation, everything normal

image
Imported into roblox, the jaw is mislocated, head is also rotated for some reason

This animation is meant to mix with the walk or run animation, that’s why only the head and neck moves, i also turned off “Key all bones” on the blender export FBX

Things i tried: Check if rotation and scale of the model is default, manually fix it, but i dont wanna do that in every single attack.

Any help is appreciated!