Electrical issues

Well that could be the problem. You'ld have to show us the wiring.
If the alternator's rotor gets power through its internal regulator, then depending on how its wired, it can also feed the ignition.
When AMC started using internally regulated alternators, a resistor wire was put between the ignition and the field wire. That was for vehicles with ammeters. The others got an idiot light with resistor in parallel. Did pretty much the same thing.