Recently EA began updating it's Origin client (Late August). If you don't have it yet you soon will. They are slowly pushing out the new client even if you weren't included in the beta testing.
The update may change your game settings and options.
To fix or check in on this, login to Origin, right-click on Sims 4 and select Game Properties to turn Off (uncheck) Origin In-game.
Under the Advanced Launch Options, you may want to check to make sure you're running the Sims 4 64 Bit.
The update changed my in-game options as well. After some digging I found that it created a new Sims 4 folder, and renamed the old folder.
To fix this, just either rename or delete the new folder and rename your old folder The Sims 4. It is okay to do this, as the old folder has all your game saves and other files needed to play the game.
The link below has more information on the new Origin client.
Origin Client's New Look and How-To:
https://help.ea.com/en-us/help/origin/origin/check-out-origins-new-look/** Posting this in Gameplay help, so more game players can see this.
