# MockImageAnchor not triggering AnchorsUpdated

**URL:** <https://community.nianticspatial.com/t/mockimageanchor-not-triggering-anchorsupdated/2013>\
**Category:** I'm Stuck\
**Created:** [May 22, 2022, 9:25am UTC](https://community.nianticspatial.com/t/mockimageanchor-not-triggering-anchorsupdated/2013 "2022-05-22T09:25:57Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![Heeroll](https://avatars.discourse-cdn.com/v4/letter/h/ee59a6/32.png) [@Heeroll](https://community.nianticspatial.com/u/Heeroll)\
**Post date:** [May 22, 2022, 9:25am UTC](https://community.nianticspatial.com/t/mockimageanchor-not-triggering-anchorsupdated/2013/1 "2022-05-22T09:25:58Z")

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_Include the following details (edit as applicable):_

- **Issue category** : ARDK Virtual Studio Tools
- **Device type & OS version** : iOS
- **Host machine & OS version** : Mac
- **Issue Environment** : Unity Mock
- **Xcode version** :
- **ARDK version** : 1.3.1
- **Unity version** : 2021.3.2f1

Description of the issue:

I was able to successfully mock a detected image using MockImageAnchor and triggered AnchorsAdded event, I was unable to trigger any AnchorsUpdated event despite moving the GameObject through transform however.

Any help here is greatly appreciated, thanks!

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**Author:** ![Stacy](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@Stacy](https://community.nianticspatial.com/u/Stacy)\
**Post date:** [May 23, 2022, 4:26pm UTC](https://community.nianticspatial.com/t/mockimageanchor-not-triggering-anchorsupdated/2013/2 "2022-05-23T16:26:23Z")

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Hello Heeroll,

To better help troubleshoot the issue, could you please provide the following information?

- What are the OS’s of your iOS and Mac devices?
- Are you using a scene from the ARDK Examples package or using your own custom scene?
- Are you seeing any error messages or warnings in the Console window?
- Did you refer to the information found on the [Detecting Images](https://lightship.dev/docs/ardk/ar_world_tracking/detecting_images.html) page of the Lightship Documentation? This discusses how to detect images and subscribe to anchor events.

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**Author:** ![Heeroll](https://avatars.discourse-cdn.com/v4/letter/h/ee59a6/32.png) [@Heeroll](https://community.nianticspatial.com/u/Heeroll)\
**Post date:** [May 24, 2022, 5:40am UTC](https://community.nianticspatial.com/t/mockimageanchor-not-triggering-anchorsupdated/2013/3 "2022-05-24T05:40:12Z")

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Hi @Stacy ,

- macOS Monterey 12.3.1
- it is a custom scene, but you may use the ImageDetection example as a reference
- No error messages or warnings are in the Console window
- Yes, MockImages added is working but there are no details on simulating MockImages updates in the docs

Thanks!

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**Author:** ![Stacy](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@Stacy](https://community.nianticspatial.com/u/Stacy)\
**Post date:** [May 25, 2022, 10:17pm UTC](https://community.nianticspatial.com/t/mockimageanchor-not-triggering-anchorsupdated/2013/4 "2022-05-25T22:17:14Z")

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Hello Heeroll,

Thank you for your patience while we look into this further!

I’m working with our internal team to get more information regarding the AnchorsUpdated event. I will update you here as soon as I get more information.

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**Author:** ![Stacy](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@Stacy](https://community.nianticspatial.com/u/Stacy)\
**Post date:** [May 26, 2022, 10:08pm UTC](https://community.nianticspatial.com/t/mockimageanchor-not-triggering-anchorsupdated/2013/5 "2022-05-26T22:08:27Z")

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Hello Heeroll,

Thank you again for your patience!

Just to clarify, was this issue occurring on device also or only in mock mode? It seems that there may be a bug when attempting to trigger AnchorsUpdated() in Unity’s mock mode, but it should work without issue on device.

I will continue to discuss the issue and how to resolve it with our internal team, but in the meantime, could you please verify that it works on your device?

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<div class="post-metadata">

**Author:** ![Heeroll](https://avatars.discourse-cdn.com/v4/letter/h/ee59a6/32.png) [@Heeroll](https://community.nianticspatial.com/u/Heeroll)\
**Post date:** [May 28, 2022, 6:12am UTC](https://community.nianticspatial.com/t/mockimageanchor-not-triggering-anchorsupdated/2013/6 "2022-05-28T06:12:24Z")

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Hi @Stacy , this issue is occurring in mock mode, looking forward to any resolution that you may have after discussion with your internal team, thanks!

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**Author:** ![Stacy](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@Stacy](https://community.nianticspatial.com/u/Stacy)\
**Post date:** [September 2, 2022, 7:32pm UTC](https://community.nianticspatial.com/t/mockimageanchor-not-triggering-anchorsupdated/2013/7 "2022-09-02T19:32:14Z")

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Hello Heeroll,

I apologize for the delay in getting back to you!

We had confirmed that this was indeed a bug that was preventing the update from happening. This issue has since been resolved, and the AnchorsUpdated event should work without issue in ARDK 2.1 and later. Thank you!

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**Author:** ![Maverick\_Niantic](https://avatars.discourse-cdn.com/v4/letter/m/8edcca/32.png) [@Maverick\_Niantic](https://community.nianticspatial.com/u/Maverick_Niantic)\
**Post date:** [March 5, 2026, 11:50pm UTC](https://community.nianticspatial.com/t/mockimageanchor-not-triggering-anchorsupdated/2013/8 "2026-03-05T23:50:11Z")

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Closed on March 5, 2026, 11:50pm UTC

Age
