laptop and a wrench

Bug

The Bookmark widget in ArcGIS Experience Builder returns an error, “Cannot read properties of undefined (reading 'toLowerCase')” when using slides in a Web Scene containing a custom basemap.

ArcGIS Experience Builder
Bug ID Number BUG-000181854
SubmittedDecember 22, 2025
Last ModifiedDecember 24, 2025
Applies toArcGIS Experience Builder
Version found11.3
Operating SystemWindows Server
Operating System Version2025
StatusIn Product Plan

Steps to Reproduce

Bug ID: BUG-000181854

Software:

  • ArcGIS Experience Builder

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