# Tag Event Script issue in Version 8.1.2

**URL:** <https://forum.inductiveautomation.com/t/tag-event-script-issue-in-version-8-1-2/43125>\
**Category:** Ignition\
**Created:** [February 8, 2021, 12:24pm UTC](https://forum.inductiveautomation.com/t/tag-event-script-issue-in-version-8-1-2/43125 "2021-02-08T12:24:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Arulwilliam](https://avatars.discourse-cdn.com/v4/letter/a/c89c15/32.png) [@Arulwilliam](https://forum.inductiveautomation.com/u/Arulwilliam)\
**Post date:** [February 8, 2021, 12:24pm UTC](https://forum.inductiveautomation.com/t/tag-event-script-issue-in-version-8-1-2/43125/1 "2021-02-08T12:24:57Z")

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Hi All,  
We upgraded the ignition from Version 8.0.11 to 8.1.2.we see some issue in Tag event script . its doesn’t trigger the script immediately even after the tag value changed .But if i move the the same script to Gateway events, its working fine(Means it triggers the script immediately when the tag value changes )  
Please help

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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:** [February 8, 2021, 12:37pm UTC](https://forum.inductiveautomation.com/t/tag-event-script-issue-in-version-8-1-2/43125/2 "2021-02-08T12:37:49Z")

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All tag events share a thread pool. If you have many events, running slow operations, other tag events will have to wait. Project event scripts run from their own thread pools, and can have a dedicated thread if necessary. You can also attach many tags to a single event via project events.

Using a gateway event is the Right Answer™.

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<div class="post-metadata">

**Author:** ![Arulwilliam](https://avatars.discourse-cdn.com/v4/letter/a/c89c15/32.png) [@Arulwilliam](https://forum.inductiveautomation.com/u/Arulwilliam)\
**Post date:** [February 9, 2021, 12:31pm UTC](https://forum.inductiveautomation.com/t/tag-event-script-issue-in-version-8-1-2/43125/3 "2021-02-09T12:31:20Z")

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Thanks a lot Phil Turmel,Understand