Don't copy paste nitrishapedatas, it'll wipe UVs. if it is a static like a sword, just import obj over a vanilla nitrishape. Then delete the mat and texture that gets imported from the mtl then hook up the shader node from a vanilla. if it is skinned, then you probably should update to the 3.7 niftools and export a skyrim version nif. remember it needs a dismember modifier before export. delete the whole shader block and just take one from a vanilla nif. change the dismsmeber partition body part to one of the numbers, ie 32, instead of bp_torso, Update Tspace, and it should be good to go. thanks ... going to try that :)