I used 3d max and export it as an .obj to Nifskope and saved it there as a .nif file.
I'm not sure, but I think that by default NifSkope exports to Oblivion nif format (20.0.0.5). Try going to Render > Settings > Genreal and set Startup Version to 4.0.0.2, then save as nif again.
I'm not sure, but I think that by default NifSkope exports to Oblivion nif format (20.0.0.5). Try going to Render > Settings > Genreal and set Startup Version to 4.0.0.2, then save as nif again.