If you downloaded a 100% completion save game from the internet, it will not work until you match the original creator's Steam ID with your Codex configuration file.
Forza Horizon 5 FitGirl/Codex Save Location : r/CrackSupport forza horizon 5 codex save game 100 fix
Sometimes, aggressive antivirus software blocks modifications to .ini files or flags the game's emulator DLLs as false positives. Ensure your game folder and the Public Documents path are added to your antivirus exclusion list. Conclusion If you downloaded a 100% completion save game
This happens if the save file version does not match your game's patch version. If your game is updated to the latest DLC (e.g., Rally Adventure), using a 100% save file from the base game launch version will trigger a corruption error. Ensure your save file matches your game version. Conclusion This happens if the save file version