High School, Uni & Death Portraits not showing up.

Hi! So, I've had a bug for a while now that cases the High School, Uni & Death Portraits not showing up. The portraits are just white.. I've seen quite a few people also have this bug, and for me it's still an issue after the last update (4th Nov 2025). It's there a way to fix it without risking my save files? I've got quite a few legacy playthroughs, so I'd like to not risk ruining them, as much as possible. I'm play on PC.