# Bug: Tag history binding always fires twice (in a flex repeater)

**URL:** <https://forum.inductiveautomation.com/t/bug-tag-history-binding-always-fires-twice-in-a-flex-repeater/112566>\
**Category:** Ignition\
**Tags:** perspective\
**Created:** [December 2, 2025, 1:54pm UTC](https://forum.inductiveautomation.com/t/bug-tag-history-binding-always-fires-twice-in-a-flex-repeater/112566 "2025-12-02T13:54:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mcarritt1](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mcarritt1/32/4262_2.png) [@mcarritt1](https://forum.inductiveautomation.com/u/mcarritt1)\
**Post date:** [December 2, 2025, 1:54pm UTC](https://forum.inductiveautomation.com/t/bug-tag-history-binding-always-fires-twice-in-a-flex-repeater/112566/1 "2025-12-02T13:54:43Z")

</div>

this was driving me crazy in a much more complex flex repeater + instance, but here is the most simplest , reproducible example:

There is a Parent view with flex repeater. the flex repeater instance passes a parameter “id” to the child view. instances is just static data, it doesnt change.

 ![Screenshot 2025-12-02 at 14.46.44](https://us1.discourse-cdn.com/inductiveautomation/original/3X/9/5/95817908b129862e6d33740127c641cdb3332b33.png)

The child view has a binding on the view.params.id .The binding also prints to console that it fired and the id number.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/3/b30749fb4a33e64dc8d6c3c8a3968107304dca46.jpeg)

As you can see in the console in the screenshot every time this parent view starts up, i **n each child the binding fires 2x.** the same result shows in the designer and the browser.

This is driving me a bit crazy in particular if I want to have a tag history binding on the child view, and its firing multiple times per instance, putting more load on the server/database than necessary. I already tried having the tag history query on the parent, but this is not ideal, I dont want users to wait to see the rest of the child view while tag history data is fetching.

I tested this with the same result on 8.1.44 and 8.3.2-rc2

here is the two views if you want to check:

[flex repeater bug.zip](https://forum.inductiveautomation.com/uploads/short-url/yYCt2EP6G4Z0DDafYQ9qqbiGXNz.zip) (14.4 KB)