vertex normals are not calculated correctly on the skin mesh and morphs skinmorphbugFBX.zip youtu.be/37e_8NPHQkU

Hi , Unfortunately this seems to be an issue on Autodesk’s end with FBX. Currently normals are not exported with FBX files. At least that’s the current state of the but that I entered for this a while back(UE-19861) and my testing seems to support it.