Here's an image of the problem. The one on the RIGHT has the correct textures. She’s using the Custom Races mod + followed the instructions on Adorable Face’s page for replacing textures. The one on the LEFT is wrong. Whenever I load the save or pass through a loading screen, the player character starts using SG’s speculars/tintmasks. Which textures is irrelevant; the custom PC one always reverts to any the NPCs are using. If I open up RaceMenu and change the complexion slider, the NPC textures disappear and don’t even load as a slider option. But when I save and reload again, they just come back. I tried going into CK, re-routing to the correct the head texture files and saving the ESP. Didn't help. EDIT: SOLUTION: Still unknown why only speculars are refuse to comply, but in case anyone comes looking with a similar problem, the fix is very easy. You just need to download nifskope and open the femalehead.nif you're using. Then, navigate to Textures; you'll see familiar file names like femalehead.dds. (I honestly don't know how to tell you to get there; just click around. I've never used NifSkope before this and that's what I did.) For all four of those textures with the purple flower: right-click > Texture > Choose > set the path to wherever you put the ones you want to use on your character (should be in the folder Skyrim/Mod Organizer/mods/the usual path). Then, save and replace the femalehead.nif. That's it!