I would go into your switch tests and check all switches and look for something off.
Use the pinball to confirm switch operations. Not your fingers or hand (actually roll the ball over the switch). WOZ has a great diagnostic program and on-screen matrix that can help you find a switch acting silly. I'm sure others may have even more tips as well. Can also e-mail Lloyd or call/e-mail Ken at JJP. Both very helpful and very nice guys.
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