IIRC, Jeffrey explains how a fellow in the diner gave up on the futurity because he screwed up and didn't collect his red letter win, accidentally pushing the orange button to play what he already had. After that, he just played them as he hit them. Just remember to bank the future OK game with the R button and play it with the orange. I should know, look at my handle!

Is this a one-off or will they do any for future sale?

There may be an issue with shutter motor 6B. The odds reset through this switch, so maybe it's causing the problem and not allowing advance (i.e., continual reset).

This resets the odds at the beginning of a new game. I think you need to check the gap on the switch as I'm sure the contacts are fine since it does what it's supposed to. Maybe just more often than it should!

If that's the case, it has to be the 3 amp fuse, the tilt relay or the anti-cheat. Does this happen after the prior game is tilted or is it completely random?