#Light color temperature (kelvin) value not changing on 2026.4

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rose stream
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I have an issue with lights color temperature value sticking, where the light changes temperature, but the value doesn't change in HA. These are esphome cwww lights. I don't have any others, so I am not sure if others are affected.

When I use the HA light control to adjust the color temperature the lights physically change to the chosen temperature correctly. However the value doesn't change in HA and if I close and reopen the control, the slider is set back to the previous/original value.

I have checked and HA version 2026.3 works fine, it's seems to be something that has changed in 2026.4.