Sims 4 Create a Sim won't save

@crinrict but in CAS i create a sim either from the 'sim story' or from scratch.. and then when i place it into the game the sim reverts back to whatever outfit popped up when i first started. if i create a family sometimes one of the sims will be what i picked but the others revert back to the initial outfit/hair/accessories etc. i literally just got the game within the past week so i don't have mods or user created objects that would mess up the game.