I know, you love reproducable bugs, so I made found one for you
- Color your cube
- “I’m finished”
- “Submit”
- Don’t press “OK” on the score table (I know, it is hard)
- Click on “Return to overview”
- Click "Start playing"
You will get back to the last cube again, but already filled with your stuff. Hitting the “Submit” button again is now ignored.