Playing my DP PRO and on ninja multiball. So 1 ball drains, down to 2 balls, then god knows where the next ball went and I'm down to 1 ball but the mode is still running meaning it's recognising there are 2 balls still in play. There's only 1 ball that I'm shooting and when that drains ninja multiball ends but it doesn't start me on my 2nd ball meaning it's telling me a ball is still in play? The ball has vanished into thin air, any ideas? Man this is crazy.