[APP][Pro] Tasmota MQTT

I don’t think there’s an inherent problem with the MQTT Broker app, and its developer is always busy with non-Homey related stuff. If you want a quick fix, look into running a local MQTT broker (something like Mosquitto or Mosca), just not on Homey. If you have a NAS or a Raspberry Pi in your home network, you can use those to run it on.