Animation is different when in game

https://gyazo.com/3343d35bf7c7dfeb49ac3357ebcbb0c0

^ this is what the animation looks like

https://gyazo.com/1104875ff011db3ff708888ce506c966

^ this is the animation in game

what could be the cause of this?

It may be the weight of the anim, go into your Animate script and check.