Having a problem since upgrade of the app. Doesn't seem possible unless the main unit updated as well. Valves close within a few minutes of being activated by manual start, or programmed schedule. Have not test with smart watering disabled, but it happens on manual starts, so not sure that is even a variable. The Zone still shows as actively watering in the application. If you submit a stop  action by pressing the red square,then restart, via the sideways triangle, the zone will come back on again. However, it shortly shuts back off, while still showing the zone as being actively watered. This is happening across all four of my zones. Curiously, if you unplug the controller after the valve shuts off, but the app still shows it watering, wait a bit, and then plugit back int-the zone comes backon shortly after reboot.