Today I replaced the Ball Trough Optic PCB with a new one from Jersey Jack. It cleared the ball trough error but now there is a new issue. Whenever a ball is locked in the elevator, the machine will eject 3 balls into the shooter lane. This will continue to happen until the power to the machine is cycled and the locked ball is ejected from the elevator. When no ball is in the elevator the machine plays fine. I will contact Jersey Jack for further assistance. As of the next day I have not heard back from Jersey Jack. If I do not hear back I will see if maybe a code update will fix this elevator issue.