Hi. Have game 508 BSE and just got it installed in basement. Code is from before May 2021 build. 3 games in and the upper right flipper started to be intermittent with flipping. Sometimes it flipped when pressed and not other times. By game 6 it barely flipped at all. The lower right flipper was 100% fine. Had family over and no time to diagnose but any clues/tips what to check for would be appreciated???