Every time on the android version of the game after getting the golden ball all the balls disappear. I have gotten the golden ball 2 times and each time the ball in the maze goes back up to the top and no ball comes out even after getting the message you got the golden ball. Very frustrating.

Sorry for the delay in responding to you!

You're absolutely correct. We managed to verify this, and it is now a known bug which we plan to fix for a future update. Thank you for the valuable feedback.