Gen 2 Zone one will not shut off at end of cycle

My Gen 2 will not shut off zone one after a watering cycle is complete and the zone will stay on for hours if I don’t intervene. To get zone one to stop I have to do a quick run for a minute, and manually hit the stop button during the quick run and then the valve will close. I don’t see this issue with other zones. Valve and solenoid are in good condition and are not the problem. Is there a solution to this other than disabling zone one and moving te wire to another unused zone?

If you have an indexing valve system the timer is not designed for that they have to be changed to individual valves