I created an NPC in my mod which seems to work fine on my end but a user has been having issues with the npcs having a grey face and looking sickly. I have a feeling it may be related to dawnguard but not sure.
http://steamcommunity.com/sharedfiles/filedetails/?id=169789400 Healthy vampire from my side.
http://steamcommunity.com/profiles/76561197987375024/screenshots/ Sickly vampire posted by user.
I did export the facegens properly (as far as I know) and archived them in the .bsa. It's the only npc the user is having an issue with. Anyone have any ideas?