Ideas
Save with mod/CC.
Since this summer, game-generated NPCs have been wearing shoes: 98% Hiking Sandals and 2% Flippers. In the CAS, when creating a Sim, the same applies. Same problem when a child is born in the household: shoes are worn in swimwear.
Regarding the headband, I hadn't seen this recurrence, but generated or historical NPCs wore different types of hats in certain locations (high school, for example).
Save without mod/CC (empty folder).
Same problem for shoes in swimwear.
Many generated NPCs wear headbands (maybe 5%) and don't remove them, for example, an extra on the film set in Get Famous. Moreover, some filming outfits are not respected.
I'm on W11, DX11, a lot of pack. Never tested with the game base only.
I used Google Translate because my English is too poor ^^