Okay so, I added humanoid NPCs to my mod, fortunately I saved with a backup esp in a different folder, before adding them so I'm not at the risk of losing over a week of hard work, but a problem came up. This warning keeps popping up... "MODELS: 'gloves_0.nif' object 'gauntlet' has a skin instance that is not dismemberable. Add "W" array to object in max. "Yes to all" will disable all Warnings for this context." minus the quote marks.

What is causing this, and how can I fix it if it can be fixed? Is there some simple/easy way to fix this without it ruining the mod? Or do I just need to use a backup ESP to make more NPCs and hope this doesn't pop up again?

Edit: For context it's a player housing mod, and there are no new meshes or textures in it that alter NPCs their weapons, animations, or their armor so that's not it. If that helps at all. I also google searched for this before posting, and found nothing.