Bug
The custom experience theme created in the previous version no longer works. The "Uncaught (in promise) [object SketchViewModel.js:4 Object]" error message is returned.
| Bug ID Number | BUG-000180797 |
|---|---|
| Submitted | November 7, 2025 |
| Last Modified | December 9, 2025 |
| Applies to | ArcGIS Experience Builder |
| Version found | October 2025 |
| Operating System | Windows OS |
| Operating System Version | 11.0 64 bit |
| Status | Known Limit |
Additional Information
The ArcGIS Online October 2025 update introduced a new theme system. All apps created after this update use the new system. Apps created before this update keep their themes from the previous system unless the themes are changed in Theme settings. Note that if an existing app is switched from an old theme to a new theme, some parts of the app may have unexpected appearances because various theme variables are not mapped in the same way. It is recommended to keep the old app theme. For more details, please refer to the documentation available at https://doc.arcgis.com/en/experience-builder/latest/build-apps/change-app-theme.htm#ESRI_SECTION1_CDD4D1EC898C4072B41503527419C4DB.Workaround
Edit the Experience and change the theme.
Steps to Reproduce
Bug ID: BUG-000180797
Software:
- ArcGIS Experience Builder
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