Sounds like you might have a similar problem to a group of us over on this thread. All actions that require cloud processing (like turning on/off a switch from the mobile app) fail 100% of the time. A reset of the HUB will work for an hour or two but then things freeze up again. Local processing still works on v2 Hub. Could you take a look and see if you’re affected and call in and add yourself to the two tickets noted in the thread if it indeed is the same symptom?
A number of us have been down since early December… SMH…