[AmazonEchoControl] IllegalArgumentException when sending command

Hey there,

I added a light to my Amazon account to be able to control it via the AmazonEchoControl Binding in OpenHAB. This works just as expected normally. However this time I am facing the problem that I cannot control the color of a lamp.
All item values are populated properly. I can set the brightness of the lamp. I can read the color of the lamp. However setting it does not work:

2024-11-03 16:06:42.677 [INFO ] [openhab.event.ItemCommandEvent                                                  ] - Item 'AmazonArbeitszimmerDeckenlampeColor' received command 151,91,100
2024-11-03 16:06:42.680 [INFO ] [openhab.event.ItemStateChangedEvent                                             ] - Item 'AmazonArbeitszimmerDeckenlampeColor' changed from 120,100,100 to 151,91,100
2024-11-03 16:06:42.683 [DEBUG] [org.openhab.binding.amazonechocontrol.internal.Connection                       ] - Make request to https://alexa.amazon.de/api/phoenix/state
2024-11-03 16:06:42.684 [DEBUG] [org.openhab.binding.amazonechocontrol.internal.Connection                       ] - PUT: {"controlRequests":[{"entityId":"XXX","entityType":"APPLIANCE","parameters":{"action":"setColor","value":{"hue":151,"saturation":0.91,"brightness":1.0}}}]}
2024-11-03 16:06:42.918 [DEBUG] [org.openhab.binding.amazonechocontrol.internal.Connection                       ] - Call to https://alexa.amazon.de/api/phoenix/state succeeded
2024-11-03 16:06:42.920 [DEBUG] [org.openhab.binding.amazonechocontrol.internal.Connection                       ] - Result of PUT https://alexa.amazon.de/api/phoenix/state:{"controlResponses":[],"errors":[{"entity":{"entityId":"XXX","entityType":"APPLIANCE"},"code":"IllegalArgumentException","message":"null","data":null}]}
2024-11-03 16:06:42.920 [WARN ] [org.openhab.binding.amazonechocontrol.internal.Connection                       ] - Smart home device command failed. The request '{"controlRequests":[{"entityId":"XXX","entityType":"APPLIANCE","parameters":{"action":"setColor","value":{"hue":151,"saturation":0.91,"brightness":1.0}}}]}' resulted in error(s): {"entity":{"entityId":"81a5d483-3b5a-462c-836b-f6a7ae9b8e0d","entityType":"APPLIANCE"},"code":"IllegalArgumentException","message":"null","data":null}

This is the light, it’s kinda cheap I guess but is Alexa certified and can be controlled as expected in the Alexa app. That’s why I think it’s not a problem with the lamp itself but the binding.
Does anyone have any ideas regarding this?

Greetings,
Felix