SSE Aeonbarr new mane mesh doesn't detect its textures

[dueldragon]

I found a cool horse mod somewhere beyond the nexus and I decided I wanted Aeonbarr to look like those horses, and I managed to get the coat to work fine but the problem lies with that goddamn mane. I replaced every one of Aeonbarr's meshes, all of which are separated, eyes, body, and hair. The eyes and the body work fine, the mane mesh loads and loads its textures in the .nif file but not in game. By replacing existing mane textures with the new manes, Aeonbarr's mane remains pink. I don't even know how to describe the issue, if anyone gets me please help me