@danick kann mit dem state "color_temp_startup" zu tun haben?
Beschreibung laut zigbee2mqtt.io:
color_temp_startup: To set the startup color temperature (in reciprocal megakelvin a.k.a. mired scale) publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"color_temp_startup": VALUE} where VALUE is a number between 150 and 500, the higher the warmer the color. To read the startup color temperature send a message to zigbee2mqtt/FRIENDLY_NAME/get with payload {"color_temp_startup": ""}. Besides the numeric values the following values are accepected: coolest, cool, neutral, warm, warmest, previous
Den Wert auf "previous" einstellen sollte vermutlich helfen. Du hast dort eine festen numerischen Wert eingestellt.