I've been using HomeGenie with half a dozen Z-Wave light switches, 2 Z-Wave outlets, and 2 Z-Wave thermostats for several months. One of my automation programs enumerates the Z-Wave thermostats using
Modules.OfDeviceType("Thermostat").Each((thermostat) =>
This had been correctly picking up just my 2 thermostats for several weeks, but a few days ago it started picking up a 3rd thermostat with Z-Wave device ID 4. I don't actually have any devices with that device ID. I went to Configure | Interfaces and clicked the Discovery option in the Z-Wave section. This listed all my Z-Wave devices and did not list the non-existent device 4. But when I go to Maintenance & Updates and click on Modules Cleanup it does list this mysterious device 4 (with no name) in the Z-Wave section. I click on it there to remove it, but it comes back as soon as I refresh my browser and re-visit this dialog.
Any idea what would have caused this phantom thermostat to get added to my list of devices or how I can get rid of it?