Played Sim creates new outfits

I'm having the same problem. I use cc, but this only has happened in my current save, absolutely no other ones. The first unusual change started after having her baby at the hospital. After getting out of the medical/surgery table she was using an outfit I did not set for her, then back at home she kept appearing with random outfits for the Everyday category after using the shower that comes with Sleek Bathroom kit. I also can delete the newly generated outfit in CAS, but it will appear again in the Everyday category in some moments.