# Available Historical Tags not populating from MQTT Engine historical tags

**URL:** <https://forum.cirrus-link.com/t/available-historical-tags-not-populating-from-mqtt-engine-historical-tags/87>\
**Category:** Ignition Modules\
**Created:** [June 10, 2021, 5:31pm UTC](https://forum.cirrus-link.com/t/available-historical-tags-not-populating-from-mqtt-engine-historical-tags/87 "2021-06-10T17:31:54Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![leland.falde](https://avatars.discourse-cdn.com/v4/letter/l/779978/32.png) [@leland.falde](https://forum.cirrus-link.com/u/leland.falde)\
**Post date:** [June 10, 2021, 5:31pm UTC](https://forum.cirrus-link.com/t/available-historical-tags-not-populating-from-mqtt-engine-historical-tags/87/1 "2021-06-10T17:31:54Z")

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I’m attempting my first tag historian report.  
Using MQTT Distributor and Engine.

- Dragging historical tag from tag browser to Available Historical Tags is disallowed.
- Data is in the database and is accurate so I know the historian is working.
- Following videos on how to perform Tag Historian Query have the Available Historical Tags already populated. I don’t understand why my available historical tags are not appearing.
- My “InsightMySQL” database is listed, but no tags appear in the tree under this connection.
- The “Sample\_SQLite\_Database” has tags listed under it.
- Any help would be most appreciated.

![image](https://yyz2.discourse-cdn.com/flex028/images/transparent.png)

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**Author:** ![wes.johnson](https://avatars.discourse-cdn.com/v4/letter/w/f14d63/32.png) [@wes.johnson](https://forum.cirrus-link.com/u/wes.johnson)\
**Post date:** [June 11, 2021, 3:18pm UTC](https://forum.cirrus-link.com/t/available-historical-tags-not-populating-from-mqtt-engine-historical-tags/87/2 "2021-06-11T15:18:54Z")

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Leland,

I’d suggest taking a look at this page that describes caveats of setting up history on MQTT tags:  
[https://docs.chariot.io/display/CLD80/MQTT+History](https://docs.chariot.io/display/CLD80/MQTT+History)

Regards,  
Wes
