Is is possible to use Rigs with twist joints?

Concerning home-made rigs in Maya (not Animation toolkit). I’m wondering if UE4 has any issues bringing in a skeletal mesh that has twist joints in the arm. They’re parented to other bones so it’s still in one long bone-heirarchy. I’m having issues importing the skeletal mesh into UE4 as an fbx and it doesn’t give me any errors to speak of, it just says it fails. I don’t think it could be the twist joints, but a peer thinks it might be (I don’t see why they would be a problem), so I figured I’d ask.

Are there any common problems floating around the ue4 community concerning importing skeletal meshes or any things I should bug-check?

Thanks!