@Bjorn_Are_Andreassen
What I am missing in your question for Help, [Tip] Problems with Homey?
Your Homey model/version
but probably more important, the brand/type of your light and the used App (or no App?) to connect this light to your Homey.
I tested with a Awox - EGLO_ZM_RGB_TW (GU10) connected with the original Eglo App for Homey | Homey App v.1.2.0
This device does not have the above mentioned Mode Tag,
but using the Set Temperature switches this Light back to TW (Tunable White) mode if it was in RGB Color mode.
the Set the Hue and Set a Color changes it to color mode.
Other cards like Turn On/Turn Off/Toggle On or Off/Set Dim/Set Relative Dim
work in both modes and don’t change it.
If it doesn’t work for you,
Report to the Brand/Support/the developer of the App that it doesn’t work as expected.
Alternatively you can try to remove your Device and Pair it direct as Generic Zigbee device with Homey to check if that gives a different result for your device.
