issue identified.
- Java-HAP library used by openHAB always sends one optional parameters as part of accessory description. It looks like this parameter accepted/ignored for all accessories but not for color temperature.
- HAP-Node used by Node-RED never sends this parameter.
- this parameter has not special meaning in the communication from bridge to home app.
it is difficult to say whether it is a bug of home app or of the lib. on one hand, we dont need to send it. on another hand, home app could just ignore it as it does for all other accessories.
anyway, i have submitted a fix for the lib Remove event parameter by yfre · Pull Request #134 · hap-java/HAP-Java · GitHub
but im afraid it will take some time until the fix gets merged, lib gets released and we can use fixed version in openHAB.