Martin,

Because it has the same problem as OBJ imports. It messes with the normals. so you end up with not the best looking mesh. So far the FBX works and a DWG import works. both end up being pretty dense but I can live with that most of the time. The GW::obj importer seems to work better than the wavefront importer. I'd have to go back and see if that is true but that is what I remember.