# Kit 107.x issue

**URL:** <https://community.cesium.com/t/kit-107-x-issue/42556>\
**Category:** Cesium for Omniverse\
**Created:** [August 6, 2025, 10:38am UTC](https://community.cesium.com/t/kit-107-x-issue/42556 "2025-08-06T10:38:11Z")\
**Posts on this page:** 12\
**Page:** 1

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**Author:** ![fis](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/fis/32/28173_2.png) [@fis](https://community.cesium.com/u/fis)\
**Post date:** [August 6, 2025, 10:38am UTC](https://community.cesium.com/t/kit-107-x-issue/42556/1 "2025-08-06T10:38:11Z")

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Current version 0.25 doesn’t start under Kit 107.3.

```auto
`[1.734s] [ext: cesium.usd.plugins-0.7.0] startup
2394-08-06T10:35:56Z [1,674ms] [Error] [omni.ext.plugin] Could not load the dynamic library from d:/kit-app-template-107.x/_build/windows-x86_64/release/exts/cesium.usd.plugins/bin/CesiumUsdSchemas.dll. Error: The specified module could not be found.
 (note that this may be caused by a dependent library)
2394-08-06T10:35:56Z [1,687ms] [Error] [omni.ext._impl._internal] Failed to import python module cesium.usd.plugins from d:\kit-app-template-107.x\_build\windows-x86_64\release\exts\cesium.usd.plugins. Error: 
        Error in 'pxrInternal_v0_24 __pxrReserved__ ::PlugPlugin::_Load' at line 261 in file C:\g\169973693\USD\pxr\base\plug\plugin.cpp : 'Failed to load plugin 'CesiumUsdSchemas': The specified module could not be found.
 in 'd:/kit-app-template-107.x/_build/windows-x86_64/release/exts/cesium.usd.plugins/bin/CesiumUsdSchemas.dll''. Traceback:
Traceback (most recent call last):
  File "d:\kit-app-template-107.x/_build/windows-x86_64/release/kit/kernel/py\omni\ext\_impl\_internal.py", line 196, in _custom_importer
    return _import_public(ext_module.path, ext_module.name, reload_enabled`

```

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<div class="post-metadata">

**Author:** ![sean\_lilley](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/sean_lilley/32/2083_2.png) [@sean\_lilley](https://community.cesium.com/u/sean_lilley)\
**Post date:** [August 6, 2025, 2:43pm UTC](https://community.cesium.com/t/kit-107-x-issue/42556/2 "2025-08-06T14:43:03Z")

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Hi @fis - We don’t officially support Kit 107 yet, but we’re working on it. See [Update to kit-kernel@107 by lilleyse · Pull Request #746 · CesiumGS/cesium-omniverse · GitHub](https://github.com/CesiumGS/cesium-omniverse/pull/746).

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<div class="post-metadata">

**Author:** ![fis](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/fis/32/28173_2.png) [@fis](https://community.cesium.com/u/fis)\
**Post date:** [August 6, 2025, 3:55pm UTC](https://community.cesium.com/t/kit-107-x-issue/42556/3 "2025-08-06T15:55:36Z")

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> [@sean\_lilley](#):
>
> We don’t officially su

So if I build the current 107 branch it should start work?

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<div class="post-metadata">

**Author:** ![sean\_lilley](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/sean_lilley/32/2083_2.png) [@sean\_lilley](https://community.cesium.com/u/sean_lilley)\
**Post date:** [August 6, 2025, 5:19pm UTC](https://community.cesium.com/t/kit-107-x-issue/42556/4 "2025-08-06T17:19:35Z")

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Yes, it should work. Let us know in the pull request if you run into any issues.

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**Author:** ![onish-ai](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/onish-ai/32/14000_2.png) [@onish-ai](https://community.cesium.com/u/onish-ai)\
**Post date:** [December 2, 2025, 1:05pm UTC](https://community.cesium.com/t/kit-107-x-issue/42556/5 "2025-12-02T13:05:09Z")

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Hi Sean, is there any timeline for when kit 107 will become fully supported? I am looking to run Cesium in Isaac Sim 5.1 which uses Kit 107.3.3

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**Author:** ![Mason\_Lee](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/mason_lee/32/31488_2.png) [@Mason\_Lee](https://community.cesium.com/u/Mason_Lee)\
**Post date:** [December 17, 2025, 11:10pm UTC](https://community.cesium.com/t/kit-107-x-issue/42556/6 "2025-12-17T23:10:22Z")

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also interested in this

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<div class="post-metadata">

**Author:** ![sean\_lilley](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/sean_lilley/32/2083_2.png) [@sean\_lilley](https://community.cesium.com/u/sean_lilley)\
**Post date:** [February 5, 2026, 6:31pm UTC](https://community.cesium.com/t/kit-107-x-issue/42556/7 "2026-02-05T18:31:43Z")

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Hey all - we just published a release for Kit 107

> **[Release Cesium for Omniverse v0.27.0 · CesiumGS/cesium-omniverse](https://github.com/CesiumGS/cesium-omniverse/releases/tag/v0.27.0)**
>
> 🚀 Get Started
> This release requires Kit 107.3 (Isaac Sim 5.1.0, Kit App Template 107.3 branch ).
> For installation instructions, see Cesium for Omniverse Quickstart.
> Have questions? Ask them on the ...

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<div class="post-metadata">

**Author:** ![MattClementson](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/mattclementson/32/28173_2.png) [@MattClementson](https://community.cesium.com/u/MattClementson)\
**Post date:** [February 24, 2026, 7:37pm UTC](https://community.cesium.com/t/kit-107-x-issue/42556/8 "2026-02-24T19:37:06Z")

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The “Connect to Cesium ion” button doesn’t appear to work in this build.

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<div class="post-metadata">

**Author:** ![sean\_lilley](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/sean_lilley/32/2083_2.png) [@sean\_lilley](https://community.cesium.com/u/sean_lilley)\
**Post date:** [February 24, 2026, 10:11pm UTC](https://community.cesium.com/t/kit-107-x-issue/42556/9 "2026-02-24T22:11:31Z")

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@MattClementson - what error are you seeing? It seems to be working for me if I sign out and sign back in through the UI. I’m testing kit-app-template with the USD Composer template.

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<div class="post-metadata">

**Author:** ![MattClementson](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/mattclementson/32/28173_2.png) [@MattClementson](https://community.cesium.com/u/MattClementson)\
**Post date:** [February 24, 2026, 10:25pm UTC](https://community.cesium.com/t/kit-107-x-issue/42556/10 "2026-02-24T22:25:11Z")

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On initial click it opens Windows Explorer (not a browser). On subsequent click, I can see the UI flash briefly, but it vanishes. I’m also using the kit-app-template with the USD Composer template

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<div class="post-metadata">

**Author:** ![sean\_lilley](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/sean_lilley/32/2083_2.png) [@sean\_lilley](https://community.cesium.com/u/sean_lilley)\
**Post date:** [February 24, 2026, 10:35pm UTC](https://community.cesium.com/t/kit-107-x-issue/42556/11 "2026-02-24T22:35:08Z")

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Hm… could you try the workarounds suggested in this thread?

> [@Connect to Cesium Ion button not launching web browser](https://community.cesium.com/t/connect-to-cesium-ion-button-not-launching-web-browser/39945):
>
> When trying to connect to cesium Ion from the USD composer, every time I click the “Connect to Cesium ion” button, it launches a windows explorer vs. the web login page. Tried USD Composer 2023.2.4 and 2023.2.5 and using the 0.24.0 Cesium plugin with the 0.6.0 Cesium USD plugin. Anyone know what’s going on? Thanks!

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<div class="post-metadata">

**Author:** ![MattClementson](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/mattclementson/32/28173_2.png) [@MattClementson](https://community.cesium.com/u/MattClementson)\
**Post date:** [March 14, 2026, 6:33pm UTC](https://community.cesium.com/t/kit-107-x-issue/42556/12 "2026-03-14T18:33:51Z")

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@sean_lilley I’ve tracked this down to our corporate proxy intercepting the SSL certificate. We’ve added the certificate to “.\exts\cesium.omniverse\certs\cacert.pem” and that has resolved our issue.