Hey - I'm the guy that this machine came from! This issue is unique and I don't recall it ever happening to me or anyone else who played it, including a full weekend at the 2021 Pinball and Arcade Show in Tacoma (where tournament players were ALL over it because their was one in the tournament area) and a few months at our local Pinball Collective. I'm glad it got worked out and that the washers I suggested weren't needed. Have fun!!!