All the UI / pop ups are not loading in properly since the new update

Hello all, since the new update (3/02/2026), all the pop ups in game have been distorted, and haven't been working (e.g I have to turn my PC off to exit the game, all the sims moodlets haven't been showing up). Additionally, all my save files corrupted and broke. I have tried deleting and reinstalling the game, but it hasn't helped.