Quoted from bridgeman:Yeah, this is occurring at a ball start. Sometimes it’s so quick after the previous ball ends. I guess the next time it happens I will try and see if the skill shot was somehow qualified causing the machine to think it should auto plunge. Thanks for the response.
This was/is happening on my SE as well.
I had a bad factory solder joint on one of the opto boards causing one of the ball trough switches to never register. Game was looking for a ball and did weird things kicking out sometimes.
Pulled the board, reflowed the joint and trough issue was fixed. Didn't have an issue with the auto plunge either for a while. Now it seems the auto plunge is firing off sometimes at random during the beginning of a ball. Not sure what to make of it yet.