I just played Black Hole for the first time a couple days ago at the PHoF in Las Vegas. I liked, it but have a question. Every time the ball got past the flippers on the bottom playfield it was ejected below the flippers and down the drain. There is a gate that could close to take the ball to the right flippers instead, but it never closed in the three games I played. Was this a malfunction or was there something I needed to finish to close the gate?