I just spoke to Nest support (15:48) and they've said they are aware of
the issue and are trying to get a technical fix and have suggested
turning the thermostats to "Off" rather than "EcO" in case they get
triggered when the Nest switches to Home.
Yes I have exactly the same issue with two holiday home, one with 6
thermostats, and the other holiday home with one thermostat - constantly
changing to Home when no one is there. Again I beleive this started on
the 14th January or there about.
