Im made screenshots that show the problem better than me trying to explain it. Basically I’m trying to import a static mesh with two materials on it. I assigned the material IDs in 3DS Max but they seem to make it over to UE4 only partially correct. I am using the workflow as described in the [UE4 docs], creating a MultiSub-Object.
What am I missing?
EDIT: After remodeling the mesh, the problem fixed itself. Still not sure what caused it in the first place though.
EDIT 2: It seems that manually triangulating the poly before exporting the fbx, fixes the problem. So maybe the automatic triangulation messes things up somehow.