Just picked up a Batman 66 with a December 2021 build date and having a blast with it. I've noticed that the right ramp activates under odd circumstances even though the optos appear aligned. Specifically, bouncing the ball around at the bottom of the right ramp, and the Penguin VUK firing the ball each activate the right ramp opto. In addition, hitting the ramp successfully sometimes counts as multiple successful shots instead of just the one.
I've gently cleaned the optos with mixed success. What's next? Is it time to reflow the solder? Order new optos?