# Tag Change Event Script Stops Executing (Ignition 8.3.6) **URL:** \ **Category:** Ignition\ **Tags:** scripting, ignition83\ **Created:** [August 10, 2026, 10:14am UTC](https://forum.inductiveautomation.com/t/tag-change-event-script-stops-executing-ignition-8-3-6/116727 "2026-08-10T10:14:35Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![rohitdas104](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@rohitdas104](https://forum.inductiveautomation.com/u/rohitdas104)\ **Post date:** [August 10, 2026, 10:14am UTC](https://forum.inductiveautomation.com/t/tag-change-event-script-stops-executing-ignition-8-3-6/116727/1 "2026-08-10T10:14:35Z")
I’m running Ignition 8.3.6 and have a Gateway Tag Change Event script that performs some data transformation and then inserts the results into MongoDB. The event is configured with a wildcard tag path, for example: Code ```plaintext [default]ABC/default/*/*/*/Time ``` The issue I’m seeing is that sometimes, probably after a Gateway restart (not sure), the Tag Change Event simply stops executing. The script doesn’t run at all until I make a change to it (for example, adding a logger statement or editing the script in any way). Once I do that, it starts working again as expected. Has anyone else run into this behavior? Is this a known bug with Tag Change Event scripts, or is there a recommended workaround to ensure the scripts will run reliably? ---
**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:** [August 10, 2026, 11:35am UTC](https://forum.inductiveautomation.com/t/tag-change-event-script-stops-executing-ignition-8-3-6/116727/2 "2026-08-10T11:35:33Z")
Are you sure your code isn't stalling? Tag Change Events are assigned a single thread to process events (in order), and if the code blocks for any reason, no more events are processed. You should look at a thread dump the next time it gets stuck. (Or open a support ticket to help with this analysis.) ---
**Author:** ![rohitdas104](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@rohitdas104](https://forum.inductiveautomation.com/u/rohitdas104)\ **Post date:** [August 13, 2026, 5:32am UTC](https://forum.inductiveautomation.com/t/tag-change-event-script-stops-executing-ignition-8-3-6/116727/3 "2026-08-13T05:32:53Z")
Thanks for the response, It didn't get stuck in last 2-3 days. I'll check the thread dump when it happens. ---
**Author:** ![rohitdas104](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@rohitdas104](https://forum.inductiveautomation.com/u/rohitdas104)\ **Post date:** [August 13, 2026, 12:39pm UTC](https://forum.inductiveautomation.com/t/tag-change-event-script-stops-executing-ignition-8-3-6/116727/4 "2026-08-13T12:39:00Z")
I noticed that the tag change event has become stuck again, this time following a gateway restart. I captured a thread dump, but I couldn’t find any references to tag-change scripts in it. Additionally, none of the threads were in a BLOCKED state. Could you advise if there are any specific areas I should investigate further? For context, my script is being invoked asynchronously from within the tag change script. Also, after the gateway restart, inside Diagnostics-\>Scripts-\>Gateway Scripts-\> Tag Change, the "Last Execution" of my tag change script is showing as "NEVER". ---
**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:** [August 13, 2026, 1:04pm UTC](https://forum.inductiveautomation.com/t/tag-change-event-script-stops-executing-ignition-8-3-6/116727/5 "2026-08-13T13:04:38Z")
Post your complete script and the thread dump. If you cannot, you should open a support ticket. ---
**Author:** ![rohitdas104](https://avatars.discourse-cdn.com/v4/letter/r/e79b87/32.png) [@rohitdas104](https://forum.inductiveautomation.com/u/rohitdas104)\ **Post date:** [August 14, 2026, 5:06am UTC](https://forum.inductiveautomation.com/t/tag-change-event-script-stops-executing-ignition-8-3-6/116727/6 "2026-08-14T05:06:45Z")
ok, thanks!