# Tag Change Event Not Firing

**URL:** <https://forum.inductiveautomation.com/t/tag-change-event-not-firing/17925>\
**Category:** Ignition\
**Created:** [May 4, 2018, 5:20pm UTC](https://forum.inductiveautomation.com/t/tag-change-event-not-firing/17925 "2018-05-04T17:20:09Z")\
**Posts on this page:** 1\
**Showing post:** 8

<div class="post-metadata">

**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:** [May 8, 2018, 12:29pm UTC](https://forum.inductiveautomation.com/t/tag-change-event-not-firing/17925/8 "2018-05-08T12:29:30Z")

</div>

Ah, you probably have one or more events scripts that are tying up the event handling thread pool. Infinite loops or some extra-long task. You should take care that any event script called from either tag events or tag change event scripts executes at least as fast as the scan class of the tags involved. Consider adding logging to all of your event scripts to find any slowpokes.

---

_[View the full topic](https://forum.inductiveautomation.com/t/tag-change-event-not-firing/17925)._