I tend to turn on my two drip zones manually. Sometimes I do so using the UI on the home page where you manually select the zones and specify a time for each, other times I do so using the “Quick Run” feature of a fixed schedule.
In both cases it is common (maybe always) for the irrigation to stop (significantly) prematurely. I sometimes have to kick off irrigation three of four times (each time adjusting the run times) to get the job done.
This just happened when I manually ran a schedule that waters each drip zone for an hour each. As the image below shows, it only ran the first drip zone for 31 minutes before incorrectly believing I manually stopped the run.