MQTT Engine not creating all folders in topic

The logs show that 12 messages are being received for the Utilities/Room/# topics, but only folder 11 is created in Ignition Designer. Restart of publishing device, MQTT Engine module, and MQTT Distributor module did not recreate the missing folders.


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What version of MQTT Engine is this. If not 4.0.18, can you upgrade and try again? There have been a few fixes to custom namespaces over the last few versions.

For reference, the compatibility matrix is here: Ignition Compatibility with Cirrus Link Modules - MQTT Modules for Ignition 8.x - Confluence

The installed version of MQTT Engine and Distributor is 4.0.18 and Ignition’s version is 8.1.30.

Hmmm - I’m not quite sure what is going on. Can you send the full logs from the system running MQTT Engine to support@cirrus-link.com? We can take a closer look there.

I assumed the folders would be created instantly, but it must have happened some time later (more than 5 minutes less than 2 days). Now all the tags and folders appeared.

Hmmm - that is odd. It should happen nearly instantly when the messages arrive. Are you seeing the values update in real time?

Yes, the values are updating as fast as I can look to the adjacent monitor with the PLC programming software up for comparison.

Yeah - I’m not sure. I’ve seen some occasions where the tag browser in Ignition Designer didn’t update automatically without a manual refresh. Is that posssible? If not, I would be interested in seeing your MQTT Engine side logs to see if anything stands out there.

If you want to pursue this - please send those to support@cirrus-link.com