At least one of our new Khajiit races uses vanilla body part .nif files and textures. This causes incompatibilities with body replacer mods, most egregiously the seamless body replacer types. On top of that, a user reported missing textures that are likely related to this (somehow). Speficially, their Redguard parts were throwing texture errors when the parts were called on our Cathays, but working just fine on their Redguards. Robert's Bodies was the replacer used.

In any case, to avoid these incompatibilities, we should consider making sure that all body parts are race-specific, even if duplicated from vanilla. That would mean meshes and textures with their own IDs (even if they are identical to vanilla ones). Yes, asset bloat. But it's better than having replacers replace our NPCs parts only from the waist down, no?