Some zones are watered multiple times a day, you probably selected clay, clay loam or loam as the soil type which accepts water slowly, often as little as 1/4 inch per hour and that is why we break the watering into many pieces to avoid water runoff.
If you think the smart schedules water too much , you can either change to different smart zone mode (ECO), or you can set up your own programs and set up your smart zone in basic level. Please check this article for more info. https://netrohome.com/forum/posts/111
If you see "next run not scheduled", you controller is in standby mode and please tap the "enable" button to enable your device in the home page.