Assumed this was an alignment issue with the left flipper solenoid so i shut the machine off and attempted to reallign. Honestly the alignment was already pretty perfect.

I did notice something unusual though. After several minutes of machine being off the left flipper solenoid remained warm to the touch while the right one was cold.

Took a thermal image and confirmed the left flipper solenoid remains substantially hotter than the rest of the stuff on the bottom of the playfield after ~ 10 min powered off.

Not sure how it is possible that the solenoid could remain partially energized when power to the machine is off, but that seems like the story the picture tells.