After two days I finally managed to get it working. I think it has something to do with the servicecall change from json to yaml in a recent update. I had to change the code format to this:
In my actual flow, I’m using a input_select to change between different scenes. In fact, choosing between the different scenes is mostly automated too. For example, when I turn on the TV, it switches to the TV scene (lower brightness).
This sounds like your call service node doesn’t have the right configuration. The json looks good.
Did you change the server back to your server? Node Red also imports a server of someone else when you import a flow. So you might be using the wrong server.
I like to enable both, as some of my lights are not always 100% reachable and then are not controllable via HA is not enabled. With both enabled, it basically just mirrors the experience i have with the HUE App.
When I google it, I see some other people who’ve had the same problem. I’m not sure how to fix this, but there might be a topic containing your answer.