How do i fix fbx animation import problem from UU3D?

Hi everyone.

I searched around and found no solution that worked for me so I'm hoping someone can help.

So I'm converting some .X models to FBX in UU3D. All works just fine in UU3D but when i bring my animated model into Unity the animation is all jittery. I've tried using older and newer import tools and I'm not baking the animation twice. Any help would be appreciated.

Thanks.