Re: Sims 4 skintones and makeup weird changes after first time updating since 2019

@ShioriHaru  This method is safe insofar as it won't corrupt the sims themselves.  However, I believe taking sims into CAS can mark them as played.  This is fine for residents—just mark them as unplayed again if you want—but it may result in special NPC sims losing their assignments.  You'd need a mod to get around this, I think by manually giving them back their assignments.

If you want to edit special NPCs and would like help finding or using a mod to make them retain their assignments, let me know, and I'll ask someone who's actually done this to post.