Re: The Sims 4 game can't save after update and some options in game are missing.
@BlueRoseEnigma When you uninstalled and reinstalled, did you keep your existing Sims 4 folder in Documents\Electronic Arts? If so, please move it to the desktop; when you launch the game, a clean folder will spawn with no content. Don't add anything to the folder, just load a new save, play for a bit, and see whether you can save. Let me know either way.
Please also check whether you have OneDrive enabled and set to automatically sync the contents of Documents with cloud storage. Here's how to find the setting: