sorry i got to this late, but it's for sure not a bother since i actually know what's going on here. the tails all point to one texture, so regardless if you have one tail on 'off' it'll look broken as long as any other is on (which is why i suggest using penumbra collections for it in specific). since it was a very 'quick and dirty' type port i didn't go this route when making it, but i'm pretty sure it's possible to get around this by redirecting the textures of the tail you want to the torgal tail texture in a custom texture slot instead of the main one & removing all the other texture edits. i'm sorry i don't know how to explain it simpler than this!