Same issue happened to me today. The app showed that the morning watering task had been completed, however, water flow wasn’t shut off and my sprinklers were working for 5 hours until I noticed it. The app didn’t show that the valve was open. When I physically pressed the button LED turned blue and nothing changed. I had to press it again in order to close the valve (LED turned red). After this incident I disabled all schedules in Rachio app and sent an email to support@rachio.com
Hopefully, someone will take a look
