# MQTT Engine / SparkplugB Namepsaces

**URL:** <https://forum.inductiveautomation.com/t/mqtt-engine-sparkplugb-namepsaces/113195>\
**Category:** Ignition\
**Created:** [January 10, 2026, 6:49pm UTC](https://forum.inductiveautomation.com/t/mqtt-engine-sparkplugb-namepsaces/113195 "2026-01-10T18:49:50Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![timothy.livingston](https://avatars.discourse-cdn.com/v4/letter/t/e9a140/32.png) [@timothy.livingston](https://forum.inductiveautomation.com/u/timothy.livingston)\
**Post date:** [January 10, 2026, 6:49pm UTC](https://forum.inductiveautomation.com/t/mqtt-engine-sparkplugb-namepsaces/113195/1 "2026-01-10T18:49:50Z")

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I am working in a test environment, Ignition Maker 8.3.2, Cirrus MQTT Engine, EMQX MQTT broker.

My data is not refreshing, and I am seeing the following in the logs:

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/9/3/935cc94e63ff80f90bd6a73a8f3b236cadd52e86.png)

Indeed the MQTT Engine is publishing to both the UNC namespace and the “Edge Nodes” folder, however I had already disabled the “Default Tags Enabled” option several re-starts ago.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/1/213d8230f21a8b43b1398fa52cad0dc6f6c58096.png)

I’ve tried every combination of deleting tags, toggling the module enable/disable, removing / reinstalling the module but none of those things seem to fix it.

Any recommendations?

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [January 10, 2026, 7:33pm UTC](https://forum.inductiveautomation.com/t/mqtt-engine-sparkplugb-namepsaces/113195/2 "2026-01-10T19:33:41Z")

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Consider posting this on the Cirrus Link forum.

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<div class="post-metadata">

**Author:** ![timothy.livingston](https://avatars.discourse-cdn.com/v4/letter/t/e9a140/32.png) [@timothy.livingston](https://forum.inductiveautomation.com/u/timothy.livingston)\
**Post date:** [January 10, 2026, 8:36pm UTC](https://forum.inductiveautomation.com/t/mqtt-engine-sparkplugb-namepsaces/113195/3 "2026-01-10T20:36:38Z")

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> [@timothy.livingston](#):
>
> I’ve tried every combination of deleting tags, toggling the module enable/disable, removing / reinstalling the module but none of those things seem to fix it.
> 
> Any recommendations?

Done. Thanks.

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**Author:** ![michael.flagler](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/michael.flagler/32/26272_2.png) [@michael.flagler](https://forum.inductiveautomation.com/u/michael.flagler)\
**Post date:** [January 12, 2026, 5:27am UTC](https://forum.inductiveautomation.com/t/mqtt-engine-sparkplugb-namepsaces/113195/4 "2026-01-12T05:27:43Z")

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One thing that stands out to me is that you are editing the Sparkplug B namespace instead of creating a new namespace for your UNS tags. My guess is that it's still trying to publish the tags under the Sparkplug B namespace which is essentially a "reserved" or special namespace intended for Sparkplug B type messages. You'll want to create a custom namespace most likely and completely disable the Sparkplug B namespace.