Sim disappearing upon returning from university

Thank you, I tried with the mods in a different game and it worked indeed.

I couldn't keep my current game though since going to uni was the first thing I made my sim do, in the backup she's still in university.

But it works so at least I can play 😄

For anyone reading I just want to let you know that the game is really bugged on Mac no matter what, to use at your own risks 😬