Main UI - send color command to hue lightbulb

I tried to send a color command via the oh-colorpicker component to an hue lightbulb (hue group), but it doesn’t change:

Main UI:

- component: oh-colorpicker
    item: =props.itemColor
      - hue-slider

This is the message in the openhab log:

2021-09-18 19:50:30.459 [INFO ] [openhab.event.ItemStateChangedEvent ] - Item 'Wohnzimmer_HueGo_Farbe' changed from 0,0,68 to 39,0,68
2021-09-18 19:50:31.843 [INFO ] [openhab.event.ItemStateChangedEvent ] - Item 'Wohnzimmer_HueGo_Farbe' changed from 39,0,68 to 0,0,68

This is my item definition.

Color Wohnzimmer_HueGo_Farbe "Wohnzimmer Farbe" {channel="hue:group:001788ac1a4a:5:color"}

If I change it through the settings → Items, it works:

Anyone an idea, why I can not change the color or is the module hue-slider not possible?