MQTT extension and DataChange Event not triggering

[AF_10328563]

Hello,

I am retrieving data from a MQTT Broker. The broker is well connected, the data is in the property.
However, the DataChange event does not trigger when i am receiving new data.
I followed multiple links:

https://community.ptc.com/t5/ThingWorx-Developers/Datachange-event-not-firing-with-MQTT/td-p/741511

https://community.ptc.com/t5/ThingWorx-Developers/ThingWorx-MQTT-Extension-and-DataChanged-Events/td-p/522407

https://community.ptc.com/t5/ThingWorx-Developers/DataChange-Problem-with-Subscription/td-p/709944

However, none of them solved anything, my subscriptions does not even start (I verify It using logger.debug())

Does anyone have an idea on how to fix this ?

[smainente · Accepted solution]

This is generally due to permission - the MQTT Thing is running as a special system user.

Maybe try https://www.ptc.com/en/support/article/cs275831