Can't receive any MQTT messages

[smarttinkering]

Hi Bert,
thanks for the great work with Vitowifi and TreeLight. I've been trying for a few day now to get TreeLight to work, but I don't seem to be able to receive any MQTT messages, not even with the examples.
The blinker example seems to publish "blinker/led" and I am able to receive the state in Openhab.
But sending to "blinker/led" or "blinker/led/set" does not work somehow.

Any ideas?

Thanks in advance for your help.

Cheers,
Thomas

[Werner-G]

@thomas: Can you please post here the libs (and links) you used? I think the reason might be a different AsyncMqttClient-version.