JIM_Z on "American Pinball Houdini thread"
Thursday 3 May 2018 at 16:58
Quoted from JIM_Z:Unfortunately I can't get much play time yet, it thinks a ball is draining and ends the ball in play. I will check it out more later.....
Houdini made a 7th ball, game needs 6. An extra ball isn't always a good thing 
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...Source: http://pinside.com/pinball/forum/topic/american-pinball-houdini-thread/page/70#post-4377081