“cas.fulleditmode” is a cheat you can type in while in Live mode so you can fully edit your Sim. Is there a cheat to change your sim’s hair? You have to use cas.fulleditmode and add makeup when you’re editing the face, not when you’re in the outfits. the wide jaw bug is very obvious when you age a Sim in CAS, while it may fly under the radar in game if the face was similar enough). Cheats don’t usually cause bugs at most, they help people discover bugs (i.e.
