After dialing run time for manual watering, and "Run" is selected, the app displays 1 additional minute and runs until finished. So if I attempt to run for 4 minutes, upon selecting run, the app will display and run for 5 minutes. Have uninstalled, restarted and reinstalled. (Note 4 with Android 6.0.1)
Hope this isn't an old issue as I am new to the forum.