: Ensure you are using the updated HedgeModManager (which replaced older versions of the Sonic Generations Mod Manager).
If you've lost all game audio after installing mods, the solution is surprisingly simple: sonic generations mods not working link
If you see rainbow flashing textures or missing textures, the problem is often in the mod's file structure. : Ensure you are using the updated HedgeModManager
Are you experiencing a like "Configuration Mismatch," or does the game simply close without warning ? select Sonic Generations
Run the manager as an Administrator, select Sonic Generations, and let it install the necessary bootloader codes. 2. Verify Game Files on Steam