Just joined the club today. Picked mine up in pretty good shape, got a steal of a deal on it either way. Having an issue with the lower left hand flipper, when I play a game it doesn't flip when the button is pressed. The upper flipper flips tho and the right hand side both flippers are working together. When I go into the test settings all the flippers test fine for the flip, and only the upper 2 test fine for the hold. The lower flippers wont hold and when playing a game the lower left doesn't work. Any ideas what the issue could be?