How often does that happen? I had the magnet totally collapse into the coffin while playing and the hole was there and it was like golf trying to get the ball to fall in. It eventually did and hammer came down. 50 games later, it hasn't done it. Just a glitch I guess. I have had to replace the magnet board within the first few months. The upgraded board came stock in the machine, but failed, Stern replaced under warranty. Had game now for 10 months.