With Tag you mean the QoS?
That I did on purpose.
But what i have seen is that QoS 0 and 1 is working on my client on my pc and 0, 1 and 2 is working on the mqtt broker, but if i publish a message with q2 from mcModule then the broker gets it but not my client.
I dont know what happening here but i will make some more tests.
For now, upgrade your mcGateway to latest firmware and make some test with QoS 0 and QoS 1 and verify if that is working.