I'm using the default built-in mqtt nodes. It works great with a single mqtt broker.
However, I have different buildings and each has its own local MQTT broker. Some of the messages should replicate between different mqtt brokers. So, I generated a flow which connects to one mqtt broker as a subscriber and to another broker as a publisher. The idea was simple enough.
Well, it seems the mqtt nodes can only use one broker at a time. So, when I setup the publisher node with another broker, all mqtt nodes start to use this broker (even the one that used a correct broker as a subscriber before)...
Am I missing something? Can we call it a bug? Is there a way to setup multiple mqtt brokers?