Sims children aging up when it's not their birthday

@Kcat1225 Can I have a look at a couple of files?

1. Your mc_settings.cfg file
2. A text file list of your mods created this way: https://answers.ea.com/t5/Mods-CC-Issues/INFO-How-to-Use-Mods-and-CC/m-p/13439359#M58783 (See "Getting a List of Your Mods")

You should be able to attach those to a post. Or you can put them online and provide a link.