Strange texture effect in game

[Hoamaii]

Hi guys,

 

I'm breaking down the Vanilla Iron armor in modular pieces and I get this strange missing texture effect on some parts of the metal pieces of the armor in game:

 

http://static-1.nexusmods.com/15/images/110/4324947-1411249454.jpg

 

The textures I'm using are CaBaL's and the Vanilla armor looks fine in game as well as other pieces I made, like pauldrons, gloves or cuirass, but I get this on both boots and belt.

 

I checked everything in 3DS, faces are ok, no phantom mesh or remaining masks. BSShadingLightProperty is the exact copy as Vanilla and all Nifskope settings identical (looks fine in Nifskope btw). But in game, it looks like the texture on parts of some triangles show on the backside of the mesh and I can't figure out what causes this.

 

Any idea? Thanks!