[WoTLK] New character models: undead eyes should be missing

There are a number of male undead feature options that are supposed to be missing eyes (i.e., empty eye sockets). However, when using the new (Legion) character models, the faces with these feature selections have partially rendered eyes in their sockets. I have searched and been unable to identify a way to fix this. All of the model patches I have found, whether bundled with the Warmane installer or available through external links, have failed to resolve the issue. Is anyone aware of a way to fix this? This greatly limits the number of faces one can use with male undead in the game.