I'm going to mark this issue as solved as it's related to MCCC
Please head over to MCCC Discord/Page on updates on what to do. I personally don't use the mod and can't help you with it.
I know this was a HUGE issue when highschool came out and the ling and short options werent working. Im having an issue where no matter what option I choose, sims age up in 21 days.
@ktbug1317 Do you use mods or custom content, and if so, have you tried playing without it? (As in, move the entire Mods folder to the desktop and delete localthumbcache.package.) You may need to change the age settings a couple of times with the mods removed to fix the issue. Let me know whether this helps.
Please also let me know whether the sims are actually aging up in 21 days, or it's just that their age length indicators say they'll age up then.
By the way, if you haven't installed the emergency patch from August 2, that would explain the issue. So please double-check in-game that your patch level is 1.90.375.1x20. You can see the version number in the lower-right area of the Main Menu.
