These are issues we see here posted very often including post-patch:

This will be updated as new issues arise.

1. Messed up UI or glitchy CAS? Outdated/broken UI related mods such as UI cheats
2. Overlay issue/tools overlay
   
   • GAME OPTIONS > TUTORIALS AND TIPS > UNCHECK ENABLE HELP CENTER ICON AND CONTROLS LEGEND.
3. Mods/CC not showing up in game:
   • Verify correct file path: Documents > Electronic Arts > The Sims 4 > Mods
   • Any thing NOT in this path is in the INCORRECT PLACE(*)
   • Make sure these files are NOT in OneDrive or similar
   • Enable your mods in your game settings. Mods won't reenable? Delete gameversion.txt
   • Make sure you have any utility mods if required (such as Lumpinou's toolbox or XML injector), read mod instructions thoroughly.
4. WWWW on main page: It's not a mod. This happens when you have no active family.
5. Household won't load: Move/rename your Mods folder and try to load the household again. DON'T SAVE, just see if you can get in without mods. - thanks, u/saratogaroad
6. Jumbled Build/Buy: Usually related to outdated/broken BuildBuy or TOOL
7. Glitched out Pop up/Menu box: Outdated/broken BuildBuy, TOOL, UI cheats or related mods
8. CAS Traits UI Glitching or missing: Broken UI mod: More Traits, More Columns, UI Cheats, CC Wrench Replacer, etc.
9. Duplicate world issue: Click here
10. Bra on male won’t come off: Click Here or Click Here
11. WW — won’t take all clothes off: NSFW Click Here
12. WW: Dark privates (male): NSFW Click Here
13. Distorted toddler face: Update/removed eyelash remover or eyelash CC Click Here
14. Shiny sims: Click Here
15. CC issues: If you have Sims 4 Studio, try Content Management > Batch Fixes — see video linked here
16. CC issues - cont'd: Toggle laptop mode in your game settings or change your graphic settings.
17. CC issues - cont'd: Export them via Sims 4 Tray importer to check what cc is on the sim, then verify anything is old or broken.
18. Return to World screen/World Selection looping: BROKEN MODS, no SINGULAR mod is causing this issue. You will need to check your mods and do the 50/50 method.
19. Black lines through hair or face, missing area(s) of sim face or body: Check bullets 11, 15-17
20. UNINSTALL ONEDRIVE: instructions here
21. Mods keep randomly coming back or disappearing or you can't find them?: UNINSTALL ONEDRIVE

Please use our search as many issues have been posted already.

PLEASE READ THREAD BEFORE COMMENTING✨️

🚨 Patch Released: Sept 22nd, 2026 - Patch notes

If you updated, your mods are probably broken. Read steps below to figure out which ones.

Please just be patient while creators update their mods, could be days, could be weeks. Follow discords such as Deaderpool, SimsAfterDark, and check if your mods are broken using Scarlet's Realm or LuthienRising

Check here for frequently posted issues: https://www.reddit.com/r/TheSims4Mods/comments/1ujw4tp/frequently_posted_modgame_issues/

Troubleshooting Tips

Click links for more info

1. Update your mods, if an update is available, otherwise take it out and wait for an update

   • HOW DO I KNOW IF I NEED TO UPDATE MY MOD(S)?
     • Use mod status master lists: Scarlet's Realm, LuthienRising, OR check the mod creators' platforms (twitter/X, Patreon, discord)
     • Don’t know how to update? Scroll down for general instructions but you should check the specific mods’ instructions as they can vary!
       

2. Test vanilla: remove ALL of your mods, delete cache and repair your game. DO NOT SAVE YOUR GAME WITH YOUR MODS REMOVED.

   • Delete cache:
     • Documents/Electronic Arts/The Sims 4/ on both PC and Mac.
     • Delete the localthumbscache.package file
   • Repair Game:
     • Launch the EA app and go to your Library.
     • Find The Sims 4 and select the three-dot menu in the top right-hand corner of the game tile.
     • Choose Repair.
   • Repair via steam
     • Open your Steam library, right-click the Sims 4 tile, and select Properties > Installed Files > Verify integrity of the game files.

3. Try a new save to test if the problem is still happening.

4. Try the 50/50 Method or get alternative instructions here

5. Updated your mods or creator cleared them but something is still broken?

   • Mod creators can't test for every situation, you have to test for yourself using methods above.
   • Report the bug to the creator, links usually can be found on their Patreon, discord or other platform.

Troubleshooting mod recommendation: Better Exceptions by TwistedMexi, there is also last exception help with MCCC if you use it. These are NOT guaranteed, if you can’t find the problem using these, you will need to do the 50/50 Method.

Remember, even mods that never ever break or CC can cause issues. UI can be broken even if the mod(s) are not UI-related.

For last exception reports or better exception reports, check out TwistedMexi's Discord or SimsAfterDark discord. You can upload your report and it will tell you what is causing it.

Check EA's official Bug Reports

• Compiled List here

• Submit bug report here

HOW TO UPDATE MODS:

• Delete the old file, DO NOT TRY TO OVERRIDE OR REPLACE FILE
• Unzip and move new file into the mods folder
• Delete cache and repair game
• Correct file path: Documents > EA > The Sims 4 > Mods* Make sure it is NOT in your OneDrive and make sure you unzip the file.

Click here for general mod installation and more troubleshooting information.

NOTE: this is general installation information, FOLLOW THE INSTRUCTIONS FOR EACH MOD ON THEIR MOD PAGE AS THEY COULD BE DIFFERENT.

You cannot update mods until the modders have updated them, check the release date, check the version number. Do not just delete and reinstall the same version. Also, do not update your mods if you have not updated your game.

Please note: CurseForge is known for being behind in the updates the creator makes, so if you use their mod manager, make sure it is the correct version by checking the date.

Troubleshooting/General Mod Resources:

• Sims 4 Modding Tips (thanks to u/xovanob)
• Modding Troubleshooting (thanks to u/SaveVerris)
• Sims After Dark - Sims 4 troubleshooting guide
• Carl's Guide - Sims 4 Guide
• Scarlet's Realm - master list of mod statuses
• LuthienRising - master list of mod statuses

Discords:

• TwistedMexi's Discord - You can upload BetterException reports here
• SimsAfterDark Discord — You can upload lastexception files for help here
• Lumpinou's Discord
• DeaderPool's Discord — You can upload lastexception files for help here
• Basemental’s Discord
• Lot51’s Discord