Help removing trait?

So I had this one sim with the non-committal trait - which I find extremely annoying - so I removed it in CAS. Which, yes, wasn't a great idea and I should've just removed it with the cheat but well. The trait obviously didn't disappear, so I tried the re-traiting potion. Still didn't work. Can anyone tell me what else I can do to get rid of it? Other than just deleting this sim altogether? :sweat_smile:

Thx :)