skin details missing in CAS?

i don't think my cc is the problem. yes, i couldn't replicate the problem when i removed all my mods- but i couldn't replicate it with my mods still present, either. i made a new sim, added a few noticeable skin details to him, saved, and left the game. when i reopened the game, with him inserted into one of my already-made households, he still had his skin details in CAS, but my sims made before the update didn't. it seems to just be affecting the sims i already had, regardless of whether my game is vanilla or not.

well, no, i couldn't observe the problem, because all my sims' skin details had been removed by removing my mods. i made a new sim both with mods and without mods, and both times, the skin details stuck. they just don't stick with my already-made sims. 

how would i move my sims into a separate save file to test this without losing what i've already done with them? 

yes, without any mods, the maxis skin details SEEM to stick, although i can't fully test that without saving the game, exiting, and going back in, which would mean id lose the skin details on that family for good (and pretty much everything else, since i didn't have mods in). 

but i'm telling you- the mods are not the problem. i couldn't replicate the issue with mods in, i told you. i made a new sim, added modded-in skin details, saved and left the game, and when i came back, the new sim still had his non-maxis skin details. i tried taking out my mod folders one by one, and there wasn't any change. and if i take all my mods out, i can't tell if the problem is fixed, because there aren't any skin details left to see!

i think that you're not reading what i'm saying. the mods aren't causing the problem, because i can't replicate it WITH OR WITHOUT mods. if i make a new sim and add ANY skin details, maxis or otherwise, the skin details stick. something is affecting my old sims.