in switch edge test, close the right outer orbit opto switch with a ball, see if it works. then, hit the right flipper button halfway, then fully (without testing right outer orbit). see what registers. are you getting the outer orbit registering in in switch test with the right flipper button at same time? the worst part about that right outer orbit opto is that you have to disassemble most everthing to access it. I don't see the flippers in the switch matrix grid row/columns with switch 42 (right outer orbit). I just replaced all my opto transmitters on my machine, as they were all original and mostly failing from years of gameplay.

i'm having fun with BSD right now, as I purchased one with more switch and opto issues than you can shake a stick at. when all fails, look for broken/burned receivers/transmitters, broken diodes, wires, pressure points. I would assume the issue is at/near your right flipper, or the switch itself. interested to know, gl