Rig's neck joint is getting moved in a different way when ingame

I don’t know when did this started ocurring but when i play an animation in game for my Rig (shrek) his head is getting moved in like more upward or downwards than it really is (Keep in mind this may be a roblox error, since its not really coming from my game)
The rig is from the toolbox so maybe yall can find it


its probably something to do with that script that handles playing the animation, what have you written in there?