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If the Primary Host ID is not set:

• MQTT Transmission will not subscribe on the notification topics and not receive any 'state' notifications to trigger the data storage
• MQTT Engine tags that were set to Stale on a disconnect to from the server will remain staled after a re-connect until either:
  • Data changes at the Edge which will result in a REBIRTH request from MQTT Engine
  • An MQTT Transmission refresh is performed forcing BIRTH messages to be published