My modo animations are missing joint rotations in ue4 after export

my mesh is missing its arm movements in ue4 for its animations iv tried everything I can think of to fix it and I learned how to import them from Modo to Unreal Engine 4 Episode 3 - Importing Animation into Unreal - YouTube can anyone help me find whats wrong
btw I’m kinda new to animating tho I’m sure the animation itself was done right