Following the discussion on the Discord channel:
Currently the configuration service on the rig, does not update after creating the project. Bug or not implemented yet? I don’t know.
The onChanged callback will only be fired once, when the extension load. The callback will not be called again after. To update the data, use the Twitch extension pubsub.
The rate limit of 20 updates per minutes is per channel.
When you get a 204 it means that the configuration has been updated 