Sims freeze while time passes

Hello

I am having a persistent issue in The Sims 4 on PC where my Sims freeze completely but the game time continues normally. After some time everything suddenly unfreezes and gameplay resumes. This happens repeatedly and makes the game very frustrating.

Details about my problem:

No mods or custom content installed, only official content.

I recreated the household in Create-A-Sim but the bug remains.

I used Tray Importer and found a red file indicating a missing or corrupted file for this household.

I repaired the game with EA App and tried a clean save but the problem is still there.

The Sims freeze is not a full crash, the game clock runs and animations stop temporarily.

I would appreciate any help or guidance because this issue makes the game almost unplayable.

Thank you

Best regards

Sylvie