Bug: controling temprature when bulbs are in a group is not possible

[matrover]

Describe the bug
Maybe its me, but with the enabling XY color mode on or off (it should be on for those Ikea E27 CWS opal 600lm) the temprature of the lights is not controllable when they are added via an group. individually i can control the temprature in homey.
in the Hue Essentials app i can controll the temprature of the same group.

To Reproduce
Steps to reproduce the behavior:

1. Add a Deconz group in homey as group
2. Change the temprature

Expected behavior
Expected to see the whites change temprature

Screenshots
in the app it seems that it works but does nothing

Additional context
in deconz or the Hue essentials app you are able to change the temprature on the same group.

[MadMonkey87]

Unfortunately I currently cannot test it myself, but at least the performed requests look good. Some quick questions to get close to the problem:

• are there actually lights supporting color temperature in your group?
• does controlling the color temperature for individual lights of that group work?

The only thing I currently could imagine is that no decimals are supported for groups. You can test that by using a flow card instead of the ui to set the color temperature. Can you try to set the color temperature of the group to the following values (they will result in requests with no decimals): 0% and 100%

[matrover]

Thanks for looking into this!

are there actually lights supporting color temperature in your group?

• The lights in the group are all Ikea E27 CWS opal 600lm which are supporting White spectrum:
• https://www.ikea.com/nl/nl/p/tradfri-led-lamp-e27-600-lumen-draadloos-dimbaar-gekleurd-en-wit-spectrum-globe-opaalwit-00408612/
• https://zigbee.blakadder.com/Ikea_LED1624G9-E27.html

does controlling the color temperature for individual lights of that group work?
Yes it does.
Using a flow to set the temp doesnt work either.

in the Hue essentials app, i can control the temp of the bulbs in the group or individually.

Tested a bit more with 2 other groups
group A containing phillips hue color candles e14 (color xy off) > temp works
group B containing Ikea GU10 CWS 345lm (color xy off) > temp works

My Ikea E27 CWS opal 600lm group uses color xy on so maybe that has something to do with it?

[matrover]

Hi @MadMonkey87 dont know if you have seen above comment? (not here to rush you :)) i can send you some bulbs if you want?