# Issue with DataTypes

**URL:** <https://forum.inductiveautomation.com/t/issue-with-datatypes/31641>\
**Category:** Ignition\
**Created:** [January 27, 2020, 3:42pm UTC](https://forum.inductiveautomation.com/t/issue-with-datatypes/31641 "2020-01-27T15:42:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![athayer](https://avatars.discourse-cdn.com/v4/letter/a/eb8c5e/32.png) [@athayer](https://forum.inductiveautomation.com/u/athayer)\
**Post date:** [January 27, 2020, 3:42pm UTC](https://forum.inductiveautomation.com/t/issue-with-datatypes/31641/1 "2020-01-27T15:42:45Z")

</div>

I am having an issue with datatypes not being stable.  
Occasionally the tags in tag group using a datatype will change.  
If I reassign the correct datatype everything reverts to normal.  
I’m using version 8.0.7.  
Any ideas?