Horstmann Thermostat Visibility under Device Control

[Apotropaic]

Hi

I have two pairs of Horstmann HRT4-ZW thermostat controllers. Both have integrated fine with the Razberry, so I can see all four devices under Device Configuration. I can also see both the controller as 'Switches', I can see the current room temperature being reported by the Thermostats under 'Sensors'. However, under 'Thermostats' I can only see the first thermostat that I included, the 2nd never appears.

I have forced a re-interview and I have also excluded and re-included the Thermostat but it has made no difference. What's strange is I see the Thermostat device within Domoticz and I can also set the temperature using Domoticz and also using HTTP requests to "http://192.168.0.32:8083/ZWaveAPI/Run/d ... .Set(1,19)" as an example.

Has anyone else seen devices not appearing under the 'Thermostat' device type?