How? i'm having the exact same problem, but in Fallout New Vegas, long story short i tried to mix some meshes through Nifskope to create an armor to replace one of the game, but when i try to wear it in-game the thing crashes, it happened to me before with another armor but i didn't give it too much attention, thinking that was something else, and bodyslide is such a pain to use(now that it got ported to 3/NV) please, i need help.