Hello all pinball fanatics. I have a problem on my GOT LE and can't find the solution. Not long ago shots going through the middle ramp will some times not register. It does not happen all the time. I'd say about 20% of the time. I've checked everything including the opto switches underneath the upper playfield and everything seems OK. On test mode when I send a ball through the ramp every switch registers.

Someone told me that it could be a "code" error. I'm running V1.37, July 2019. I must confess that before the code update I did not have a problem. If I was to reload the new code, would that work? Any advise is welcomed.