Is it intended that when you load a mod with custom NPCs that not all of them are replaced? The modded ones also revert back to the normal model after sex. Looking forward to more customizability in-game and also with the modtool.
Modpack creator decides whether to replace default skins or add on top of them. Still, if you want to see only custom ones you can turn "Allow default npc skins" option off. Skins reverting after finishers is a bug.
