The Initialization at startup error [135dec40:90f690cf:00000075:495f32a0] is back with a vengeance, this time affecting Sims 4 Mac players running the current version of the game with multiple language options and not the Legacy Edition.
There are three options currently to fixing this issue. I’ll link directly to MaxisJoe’s workarounds at Answers HQ. Please read them fully and choose the one you feel most comfortable with:
Method 1 (Easiest option) – Change Origin and Sims 4 language to the same in the Origin app
Method 2 (More technical but still easy option) – Manually edit the .plist Origin files
Method 3 (Easy but drastic) – Uninstall and reinstall the game and change language in Origin