@rosesareredtooIt never hurt to make a factory reset.
When you play a very long game and save it, all small files in the game folder may be slightly damaged or not working properly. This is even more likely if you use mods or CC. Repairing the game fixes the installation files and this is needed - but it will not fix all the errors that were created in your game folder and have been saved in some files. The factory reset is a very safe procedure and will neither damage your saves nor will touch your library in the Tray folder. This is just a fresh delivery of brand new files your game uses.
Step 1. Rename The Sims4 folder to "The Sims4 old"
Step 2. Fix the game in Origin
Origin/Library - right-click on TS4 - option "Repair game"
You have to wait until Origin will fix all packs, not only the base game.
Step 3. Turn on the game - a new game folder will be created and you will have two - one old, one new
Step 4. Check if you still have this problem in the newly created game folder. Start a new game with a random sim and play for 10 minutes.
If the problem disappeared
Step 5. Delete in the new game folder following folders:
"saves" and Tray.
Step 6. Go to "The Sims 4 old" folder and copy - your "saves " folder.
Step. 7, Paste this folder in a newly created game folder.
Step 8. Do the same with Tray folder and TrayDeleteItems file
Step 9. Check if there are newly updated version mods you are using.
Then copy and paste your mods and CC from old mods folder to the new one. First copy the scripts mods every time checking if the game is working properly. If you have a lot of CC try 50/50 method ( divide your CC into smaller batches for example 50 pieces in one subfolder and check these subfolders one by one)
Step. 10. If all is OK - delete "The Sims4 old "folder. Now you will have only one game folder working properly.
