mcccsims4.com
Find your symptom
| What you see | Likely cause | Fix |
|---|---|---|
| MCCC vanished right after a game update | The game disables mods when it updates | Game Options > Other: tick both mod options, restart, and update MCCC |
| Listed under Script Mods, but no menu on computers or Sims | MCCC version does not match the game version | Update the game, then install the latest MCCC from the official page |
No welcome notification and no mc_cmd_center.log | Files more than one folder deep, or a version problem | Move the files to Mods\MCCC. Check LastException.txt |
| Modules missing from the Script Mods list | Faulty Resource.cfg | Put the files straight in Mods. If that works, delete Resource.cfg; the game makes a new one |
| Orange "Last Exception" notifications | Almost always another outdated mod or CC | See the Last Exception section below |
| Settings do not save, "PermissionError: [Errno 13] Permission denied" | OneDrive is syncing the Mods folder | Stop OneDrive syncing that folder, so MCCC can write mc_settings.cfg |
| Settings reset after an update | The .cfg files were deleted | Next time keep mc_settings.cfg, mc_tuner.cfg and mc_dresser.cfg |
| MC Woohoo or MC Cheats "missing" | Looking in the wrong menu | MC Woohoo is on the computer only. MC Cheats is on Sims and the mailbox only |
MCCC not showing up: check these in order
- Both boxes ticked? Game Options > Other: Enable Custom Content and Mods and Script Mods Allowed. Restart after ticking them.
- Is the game reading the files? Game Options > Other > Custom Content lists MCCC under Script Mods when it found them. Being listed only proves the files were found, not that they loaded correctly.
- One folder deep?
Sims 4\Mods\MCCCworks.Sims 4\Mods\ScriptMods\MCCCdoes not, and the game gives no error for it. Install steps. - Unzipped? The game cannot read the zip.
- Versions match? Every module must be the same version as
mc_cmd_center, and that version must be made for your game patch or a later one. Deaderpool says older game versions are often not supported.
The module picker on the main page lists the file names a correct MCCC folder contains.
Last Exception errors
MCCC watches the game's error log and tells you when the game writes a Last Exception. That makes MCCC the messenger. Deaderpool says these errors are almost always caused by bad or outdated mods and CC, rarely by MCCC, and that they keep coming until the cause is removed or updated. The notifications cannot be turned off.
- The file is
LastException.txtin theThe Sims 4folder. Numbered copies are old ones. - If a Last Exception happens while the game loads, MCCC may not appear in the game at all, because the broken mod stopped other mods from loading.
- Mod conflict detectors do not help here. They compare resource IDs between files and do not spot outdated mods or script problems.
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Test with MCCC alone
- Move every other mod and CC file to a temporary folder outside the
The Sims 4folder. - Put only the MCCC files directly in Mods, not in a subfolder.
- Start the game. If it runs cleanly, MCCC is fine and the problem is in the other files.
- Put the other files back half at a time (the 50/50 method) until the error returns, then keep halving that group.
The reverse test proves the point: run the game with your other mods and without MCCC. The game still writes Last Exception files, only now nothing tells you.
Mods known to break MCCC, and where to get help
Deaderpool lists these as causing problems alongside MCCC: Autosave for Sims 4 by sachamagne, Neia's No More Same Sims Everywhere, TwistedMexi's Always Testingcheats, ArtUrlWWW's Pregnancy Mega Mod, "Sticky Clothes" mods, Cowplant Tweaks by kylebeans, Woohoo is Exercise by Candyd (with MC Woohoo) and the InTeen mod.
Still stuck? The support Discord linked on the official troubleshooting page has an error support channel. Bring a screenshot of your Mods folder, a screenshot of the Script Mods list, mc_cmd_center.log, the current LastException.txt and a specific description of what happens.
FAQ
Why is MCCC not showing up in my game?
The usual causes are script mods switched off after a patch, an MCCC version older than the game, or files more than one folder deep in Mods.
Why did MCCC stop working after the update?
The game disables mods when it updates, and the new patch may need a new MCCC. Re-enable both mod options and install the version listed for your patch.
Is MCCC causing my Last Exception errors?
Rarely. MCCC reports errors the game logs. Deaderpool says they are almost always caused by other outdated mods or CC.
Does MCCC work on PS4, PS5 or Xbox?
No. EA says mods are only available for PC and Mac players.