New to forum A few months back I noticed that some members of a simple porch lighting scene at a vacation home were not switching off per schedule. Using old APP as I have a few camera on it. (I did use the new App for a while but figured it might have been the cause and deleted it from phone) I usually have a Yellow Dot on the Light Icon when this occurs. The lights always perform with the App on an individual basis. I have deleted the scene and reinstalled and it seems to work for a few days then goes back to not responding to Off Schedule.
If the status indicator shows yellow on a device, that means the Hub was unable to determine the module status. That happens when there is some kind of signal interference between the Hub and a power line module, or when the Hub has experienced a power outage with battery-operated devices.