# Bad\_Stale Error When Accessing Container Custom (or any) Property

**URL:** <https://forum.inductiveautomation.com/t/bad-stale-error-when-accessing-container-custom-or-any-property/93160>\
**Category:** Ignition\
**Tags:** perspective\
**Created:** [July 12, 2024, 6:45pm UTC](https://forum.inductiveautomation.com/t/bad-stale-error-when-accessing-container-custom-or-any-property/93160 "2024-07-12T18:45:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Jeffrey\_Smith](https://avatars.discourse-cdn.com/v4/letter/j/e47c2d/32.png) [@Jeffrey\_Smith](https://forum.inductiveautomation.com/u/Jeffrey_Smith)\
**Post date:** [July 12, 2024, 6:45pm UTC](https://forum.inductiveautomation.com/t/bad-stale-error-when-accessing-container-custom-or-any-property/93160/1 "2024-07-12T18:45:17Z")

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I am trying to access a property on a parent container and the expression keeps returning Bad\_Stale.

The expression: `{.../this.custom.parameter}`

Architecture:

```python
FlexContainer (with desired property)
          CoordContainer
                    Label Component

```

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<div class="post-metadata">

**Author:** ![SolarNomad](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@SolarNomad](https://forum.inductiveautomation.com/u/SolarNomad)\
**Post date:** [July 12, 2024, 9:09pm UTC](https://forum.inductiveautomation.com/t/bad-stale-error-when-accessing-container-custom-or-any-property/93160/2 "2024-07-12T21:09:04Z")

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Not sure why yours is not working but with the same setup I can see and reference custom properties from a parent window

I would make sure the project has been saved since the parameters have been added

 ![image-1](https://us1.discourse-cdn.com/inductiveautomation/original/3X/3/a/3a402bf0fd9d3fdfdf7f68a869648946150deb40.png)

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<div class="post-metadata">

**Author:** ![Jeffrey\_Smith](https://avatars.discourse-cdn.com/v4/letter/j/e47c2d/32.png) [@Jeffrey\_Smith](https://forum.inductiveautomation.com/u/Jeffrey_Smith)\
**Post date:** [July 13, 2024, 12:45am UTC](https://forum.inductiveautomation.com/t/bad-stale-error-when-accessing-container-custom-or-any-property/93160/3 "2024-07-13T00:45:39Z")

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If I put the custom property on the view, it works just fine. But when accessing it on the root container it doesn’t work.