Do you have a link to the Vivint forums? I haven't been able to find this link. Thanks.
This is still happening to me if not every day, every other day.
I was reading in another thread here that if you set it on the thermostat itself, it usually doesn't revert. so I guess I'll try doing that and see if it changes again.
This kind of defeats the purpose of having a smart thermostat, being able to change it remotely and having it stick. We use voice commands to change it frequently too.