Observed new issue on a GB Pro on location yesterday (coincidentally day 1). Basically the left wireform of the symmetrical stacking captive ball lane is bent inward and this captures the captive ball so it doesn't fall back down... essentially making this shot never register. This is only very slight b/c during play it will work it's way back down...
Don't know if it shipped this way or if some really strong hits from the ball caused this.
Both shots below are still (i.e. the ball was not in motion). Also, the red line is so you can visualize the bend. It is a straight line between the ends of the wireform.
GB-CaptiveBallStuckInLane2b_(resized).png
GB-CaptiveBallStuckInLane1_(resized).png
And if you are really observant you'll also note that the one way gate in the right orbit entrance is stuck up...