Oh yeah it's working great now! Was 100% then I played it too much.
I haven't fully disassembled and cleaned everything on the control unit, which is why this happened. Game isn't super dirty, just a little dusty, and I'm creating some problems by playing it so much. It's back to 100% again and I absolutely love it. Gonna play a round or two at lunch, too. Nothing like the quadruple winner racking up replays.
I haven't been able to stop playing that game since I got the shutter installed, haha. Playing without siderails is a challenge, but I worked a bit on nudging the game from the lockdown bar. Now that siderails are installed, it's like 'easy mode' - I've been hitting that game for big numbers almost every game.
The corners scoring with the magic squares is a powerful feature. I love having squares through 'D' lit and seeing the corners come on. I steel myself to compete with the machine and 'square up' on it. A great player, and I'm glad it's lived up to my memory.
So happy to have this game in my collection, and it is extra special to me due to all the help I've had from the bingo luminaries (Vic, Steve, Dennis, and Jeffrey) in getting this particular machine up and running. Thank you all for your time and parts! The bingo pinball community is a special one, and I am proud to be a small part of it.