I had the same problem on my delta as well, and the cause was two slightly loose nuts on one of the mag ball holders which unscrewed themselves after a few prints. I recently rebuilt my printer, and opted for nylock nuts for all screws on all moving parts which has higher friction and harder to unscrew themselves. I can highly recommend it 🙂
fixed it! I had a single hair of a wire from the gnd connector on the smart effector end laying across to the next pin, i cleaned it up and dabbed a little liquid electrical tape on the wires coming out of the connector.
Thanks for your help with the config side of things!
I'm glad you fixed it. I had been thinking that a short between OUT and GND would explain the problem, but it seemed unlikely that you would have one.