# \[BUG\] When deleting UDT Definition with no instances, warning shows anyway

**URL:** <https://forum.inductiveautomation.com/t/bug-when-deleting-udt-definition-with-no-instances-warning-shows-anyway/41824>\
**Category:** Ignition\
**Tags:** ignition80\
**Created:** [December 29, 2020, 2:07am UTC](https://forum.inductiveautomation.com/t/bug-when-deleting-udt-definition-with-no-instances-warning-shows-anyway/41824 "2020-12-29T02:07:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\
**Post date:** [December 29, 2020, 2:07am UTC](https://forum.inductiveautomation.com/t/bug-when-deleting-udt-definition-with-no-instances-warning-shows-anyway/41824/1 "2020-12-29T02:07:37Z")

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I made a new UDT type/definition and then deleted it (without creating any instances), and this warning still showed up:

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/c/0/c0a9c3d84d19360ceb6df3cc77127e434b2b6ac8.png)

This prompt causes false concern as effectively it seems to appear regardless.

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<div class="post-metadata">

**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\
**Post date:** [August 23, 2021, 2:40am UTC](https://forum.inductiveautomation.com/t/bug-when-deleting-udt-definition-with-no-instances-warning-shows-anyway/41824/2 "2021-08-23T02:40:46Z")

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This is still an issue in 8.1.5

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<div class="post-metadata">

**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\
**Post date:** [April 10, 2024, 1:34am UTC](https://forum.inductiveautomation.com/t/bug-when-deleting-udt-definition-with-no-instances-warning-shows-anyway/41824/3 "2024-04-10T01:34:50Z")

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Still a bug in 8.1.31. Very disconcerting, even if you're sure it's not used...