Rak7268 does not publish data to mqtt

Hi I have followed the: Use the MQTT Broker Like a Pro + Examples | RAKwireless Documentation Center and I do not get anything in the mqtt. I have tried with the internal and external mqtt.
I can publish and subscribe to the topics using cli or mqtt.fx tool but nothing comes through from the gateway. I see the uplinks in the lorawan packet logger but nothing in mqtt.
Perhaps part of the problem is that I am not sure how to setup the application part.
I want to create an application which accepts any uplink and publishes it to the mqtt. How would I do that? Appreciate any update. This is all new to me so please be patient :slight_smile: