X-Men Wolverine LE Stalling During Gameplay

Just got my first pinball machine—an X-Men Wolverine LE (Stern 2012) in great condition! It’s super fun to play, but I’m running into an issue.

During gameplay, it seems like the machine occasionally thinks there are multiple balls in play when there’s only one. For example, when Magneto captures a ball, the game sometimes just sits there as if it’s waiting for something, eventually timing out.

My guess is that these are situations where a second ball should have been released but wasn’t. I’m still learning the game, so I’m not entirely sure.

Does anyone have advice on troubleshooting this issue? Any tips would be greatly appreciated!