As of this morning, the switches i've circled in the photo below don't register points or chimes when they are closed. I've looked at all of those switches and adjusted them to be sure that none are closed.
Looking for advice about where to look to find where the problem is.
Additional troubleshooting info:
When the 5 star rollovers are all lit, and the green lights in the mid-playfield lane light up, they immediately turn off and the 2x bonus gets lit. This happens without actuating the switch in that lane.
If I manually go through the process of hitting a top lane switch, then trying one of the unresponsive switches, every 5 or 6 times (it's not consistent) one of the unresponsive switches will score/chime. Sometimes i can get the unresponsive switches to register 2 or 3 times in a row, then they are unresponsive again.
I'm at a loss for where to look. I'm trying to understand what condition the top lane switch changes to make the problem go away intermittently.
Any help or pointers are much appreciated. About two months ago I went through the entire machine and cleaned and adjusted every switch. I'm stuck on this issue!