Node-RED cannot inject anything into hassio, but reads everything

Hi,

I am new to the Node-RED integration and would love to migrate my automations from hassio into it. However, I experience following issue:

Situation:
Hassio is running on Synology DSM in a virtual machine with official hassio image on separate IP-address that is not used for any other service.
Node-RED is installed via hassio addon store. Communication from hassio to Node-RED works well (e.g. events_state shows correct state if entity (light) is triggered by hassio or hardware switch).

Problem:
A short flow inject --> call_service (domain: light OR switch OR input_boolean; service: turn_on OR turn_off; entity_id: light.hue_go_marcus) shows “success”. However, in hassio the state of the entity does not change, nor the light in real life will turn on/off.

Expected behavior:
Node-RED flow should successfully trigger light entity to on or off.

Further diagnosis:

Any help is much appreciated! Many thanks in advance! :slightly_smiling_face: