If The issue was caused by moving magnets. I would expect it to either get worse with speed, since the EMF generated by a moving magnetic field is proportional to it's speed or to have certain speeds where it resonates and be reproducible by speed.Yes, I am not used to having spinning magnets around.
Neither of these is true, so I feel I can safely eliminate magnetically generated EMF as the cause of the issue.
Still need to graph the solenoid currents. There are two that are right next to the sensor wire Looks like N91 and N731