[ARCHIVED] [HSY] Homeless, unplayed teen sims never age up

Product: The Sims 4
Platform:PC
Which language are you playing the game in? Deutsch
How often does the bug occur? Every time (100%)
What is your current game version number? 1.99.305.1020
What expansions, game packs, and stuff packs do you have installed? all
Steps: How can we find the bug ourselves? Enable auto aging in your game. Send a played teen to High School and observe their classmates. Most will be auto-generated teens who live in one-person households without parents.
What happens when the bug occurs? These teens never age up, even if you style them in CAS and put them into a family. This has the consequence, that if your played Sims' children will go to High School several "years" later, they still meet the same classmates as their parents.
What do you expect to see? I expect everyone in the game to age up normally
Have you installed any customization with the game, e.g. Custom Content or Mods? Never used.
Did this issue appear after a specific patch or change you made to your system? Yes
Please describe the patch or change you made. This happens since the release of HSY.

‌

This is very annoying if you play over multiple generations.