I know how level 10 was verified. I’ve figured it out by accident. If you die while verifying a map but cross the finish line (not exactly the finish line, a bit further, you can tell it worked if the camera shifts to the left) and even though you died the game still counts it as verifying the map, but it doesn’t work playing the map making it impossible to beat normally. I made a map like this. It’s ID is OQpMm