I haven’t seen this issue yet, but perhaps I missed it, if so, apologies:
If a ball is hit “lightly” into the car / let’s go bowling subway on the upper playfield, the ball sometimes gets stuck in the subway inlet. Nudges can’t unlodge it, I have to drop the glass and can push it through with my finger. It doesn’t take much pressure, but it certainly gets stuck.
I’ve confirmed the machine is level.
Any thoughts welcome...happy to snag a picture too if I’m not painting the mental image well.