Pathfinder: Kingmaker – How to Use Custom Portraits

I seem to have a problem that doesn’t seem to be able to be fixed, i’m trying to add new portraits to my game(for specific characters i’m trying to use. I was able to add the portraits with little difficulty, but when I try to play the game with the portraits I added, my game stalls or something, i can’t exit the game or close it, and i can only do two things to restart, i either have to hit the reset on my tower, or hit the windows button and choose to restart. I’ve tried it many times, and i can’t seem to fix it. though if i only use the ones that are already in the game it’s fine, i don’t know what else to try, my video card drivers are up to date, i don’t seem to have anything else to try, a video said it was easy to do but i have yet to find that at all, I have set the Small Medium & Fulllength portraits for the ones i want, i hope there is something i can do to use the protraits, i have a portrait for every character i want to make in the game, but can’t get my computer or game to allow them or something, i don’t know how else to explain my problem, i hope someone can help me figure this out