Automation with light toggle and color doesn't work anymore since last update

Configuration
1

Since the last update (2026-03) ALL my automations for toggling my light on and of fails to work.

metadata: {}
data:
  color_temp: 350
  brightness_pct: 100
target:
  entity_id:
    - light.bureelkast
action: light.toggle

results in

Licht ‘Omschakelen’
Uitgevoerd op: 9 maart 2026 om 22:16:54
Fout: extra keys not allowed @ data[‘color_temp’]
Resultaat:
params:
domain: light
service: toggle
service_data:
color_temp: 350
brightness_pct: 100
entity_id:
- light.bureelkast
target:
entity_id:
- light.bureelkast
running_script: false

2

Hi Danny, have a look at this: Color_temp to color_temp_kelvin migration tool

1 Like
3

Thanks !!!
That solved the problem !

4

Hi, good that it is solved!

Tip: I strongly advice you to read the release notes and breaking changes before updating your HA, especially if you have a big/important part of you house running on it, or you might experience more real ‘surprises’ one day…

Also: please take the time to mark the post that holds the solution.
You do that by selecting the three dots under the post:

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Then select the check box:

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By doing so:

  • this thread can be useful to other users as well (this thread comes up as solution when starting a thread which is similar to yours).
  • this prevents that someone else steps in trying to help

Thanks for giving back to the community! :+1: