Grey Face Bug

This is a Skyrim bug unfortunately. There is only a temporary fix (nothing permanent exists, yet).

It happens when you perform a race change on a NPC. You can usually export facegen data for a NPC and package it with your mod, but I cannot export facegen for all the NPCs in Skyrim (you can turn almost anyone).

- Enter the console with ~

- Click on the NPC

- type: setnpcweight 50 (any value from 1-100 will do)

- close console

This will reload the 3D model and help them match again (or a lot closer anyway).

UPDATE: I have scripted an automatic (temporary) fix in versions 6.8 and above. When you enter a cell it will attempt to refresh the 3D model of those NPCs you have turned. It is also scripted to occur every hour in game as you walk around. This should help alleviate the "grey face bug", but you might see it disappear after a few seconds or after you wait. I have noticed that some NPCs cannot be fixed no matter what we do. Console commands and scripts refreshing the face are ineffectual for some models - perhaps they have unique textures beyond what average NPCs have.

Better Vampires Grey Face Bug Fix by Sjaybird

Sjaybird has created a step by step guide to fixing the grey or mismatching face bug for Better Vampires. It should help if you want to try and fix things yourself.

http://forums.nexusmods.com/index.php?/topic/566543-vampire-fix-by-brehanin/page-1785#entry36457540