There Was An Unhandled Exception Trying To Save Your Rom To Disk

If none of the above worked, the "unhandled exception" might be a genuine bug in the software or a corrupted save state.

Extremely rare, but if your OS has deep-seated file permission corruption or user profile damage, a fresh install may be the only solution. Try creating a new Windows/macOS user account first – if the error disappears in the new account, your original profile is corrupted. If none of the above worked, the "unhandled

Check your drive for "No space left on device" errors. Try clearing out old files or saving the ROM to a different drive with more breathing room. 2. Verify the ROM File The randomizer needs a "clean" slate to work its magic. If none of the above worked