I've had a Sim that I've played with for literal years whose hairstyle has suddenly just... vanished out of my CAS options. Whenever I try to place her on a lot, the game reverts her hair to one of the base game options, so I'm assuming the file is missing, but I'm not sure what would cause this. To make matters worse, I have no idea what the hairstyle is called or where it's from. I have looked through every female hairstyle on the store, searched my purchase history, re-downloaded/installed anything that I think may have been the right file, but it's still missing. I'm positive the hairstyle isn't custom content, but it did not have a expansion logo in the corner, just a save file logo, indicating it's from the store. I'm including a picture of the hairstyle from the saved Sim's thumbnail and I can attach the .sim file for her if it helps. I'm going crazy - nothing else seems to be missing from my game. I own every expansion and stuff pack with the exception of Diesel Stuff, which I'm having trouble getting Origin to recognize, but Diesel didn't add any hairstyles, so I don't know what could've changed to make this hairstyle disappear. Please help!
Edit: I looked through all the store worlds like Monte Vista and Lunar Lakes and it doesn't seem to be included in any of those bundles. As I said, I'm positive it is not CC.