Invisible sections?

[ThatGuyBrian]

Hello again. I've recently been hard at work on a new ship mod and I've run into another brick wall. Entire sections of the ship I've been working on outright refuse to render in BC. (though the sections change depending on which program I export through) Take for instance, this export through Milkshape.

Looking at it through Nifskope shows inverted normals/faces in the unrendered section, yet flipping them has no effect in-game.

I'm not quite sure what to do at this point. Any help would be appreciated.

[Tethys]

I'm no modeller, but to me it appears that the polygons in some areas are either incomplete or lack depth. It's like parts of the model appear to be 2d while others are 3d. This is probably why inverting the faces has no effect. Has any texturing been done?

[ThatGuyBrian]

Has any texturing been done?

Yes, the model is fully textured.