The problem started with the left kickout only working one time and stopping. I then noticed that if you advance the bonus at all it will work one more time. Traced this to a likely issue with the stepper motor not finding 'home' and that seemed correct. Once you cashed out a bonus it reset to a position with no contacts. Tried to take apart the disc and align and now things are really bad.
1. The left kickout no longer works at all. If you put a ball in there the relay will click, score reel tallies, then the relay keeps trying to activate but no kickout ever happens.
2. The right kickout works both kickouts at the same time. The right advance bonus sling advances both bonuses (noticed the advance bonus before starting any 'work' but I believe the kickouts in tandem is new)
3. The upper slings no longer switch which side 'arrow' arrow is lit
No wires appear loose. I'm lost as to where to start. I'm not electrically trained so schematics aren't helping me trace an issue I don't know where to begin at with. Stepper motor now seems to be adjusted correctly and advance correctly.
Pictures included are of the stepper after me taking it off to set zero, the left kickout switch, and the left relays.
Edit: Crash course in wiring diagrams shows a red white wire going through what seems to be all the problem areas (left advance, both outholes, left stepper, two related relays), but I've traced this wire to no obvious issue. The left bonus relay used to fire off, but is no longer even trying. It seemed to go from working, to clicking repeatedly and not firing with a ball in the outhole, to not firing.