Sims' portrait's outfit changes/reverts when traveling

I'm Korean, and I'm not good at English, so I'm translating it and posting it. I have a symptom that hasn't been around lately. For example, if I change from my old clothes to another clothes and move to another place, the exterior might reset to the original clothes. And when I try to change to another clothes again, it says that I'm already wearing what I'm trying to change. I checked if there's a mod conflict, but it's not a mod conflict, and I think there's a problem with the game itself.