The Sims 4 fails to launch when Custom Content is installed

Hello,

I’m experiencing an issue with The Sims 4 where the game will not launch if Custom Content (CC) is present in the Mods folder.

Here is a detailed description of the problem:

• When I launch the game through the EA App with CC installed, the app minimizes as if the game is about to start
• After a few seconds, it returns to the EA App without launching the game
• No error message or code appears

However:

• When I completely remove all CC from the Mods folder, the game launches and runs normally without any issues

Troubleshooting steps I have already tried:

1. Repaired the game through the EA App
2. Removed all Mods and CC and confirmed the game works without them
3. Cleared cache files for both EA App and The Sims 4, including:
   • localthumbcache.package
   • cache folder
   • cachestr folder
   • onlinethumbnailcache folder
4. Reinstalled The Sims 4 completely
5. Reinstalled the EA App
6. Launched both EA App and the game as Administrator
7. Restarted my computer multiple times during the process
8. Verified that Mods/CC are enabled in game settings (when the game does launch without them)

Additional notes:

• The CC I am trying to use previously worked without any issues
• The issue started recently, and I did not intentionally change any settings
• The problem occurs consistently every time CC is added back into the Mods folder

At this point, it seems that any presence of CC prevents the game from launching at all. I would appreciate any help in identifying whether this is a known issue, or if there are additional steps I can take to resolve it.

Thank you for your time and assistance.

Best regards,
Anne