I have a ST LE that has developed an issue. Upon start up of each ball, 2 balls are being kicked out 80-90% of the time. It loads one and then a second later loads a 2nd into shooter lane. I have checked/insured the switch in the launch lane is being engaged (it knows a ball is there). I have checked diagnostics for ball trough - it shows 4 balls in the trough, then when 1 loads it shows 3 in trough and 1 in lane. Even with this, it still kicks out 2 balls most of the time. Game calls for 4 balls and 4 balls are loaded in machine.
While HUO, I am not the original owner and acquired this a few weeks ago. I made only minor changes on settings. Suggestions to fix or should I try a factory reset or look for an opto problem or ????