So I have about 30 devices on a V1 hub. Lately random devices have been showing up “Unavailable”. For about a month, I have been visiting the device location and either switching the device on and off or open and closing the door the sensor is on and it will become “Available” again. Big PITA and very frustrating. This morning, I noticed that if I select the specific device in the mobile app, and then go briefly into the configuration and click “done”… the device will reconnect. That tells me it is something with the back end.