BUG-000181599 for ArcGIS Online

Bug ID Number	BUG-000181599
Submitted	December 10, 2025
Last Modified	January 7, 2026
Applies to	ArcGIS Online
Version found	October 2025
Operating System	Windows Server
Operating System Version	2022
Status	As Designed

Additional Information

When a view layer is created, it captures certain properties from the source hosted feature layer at that point in time, including the spatial reference. If the source layer’s spatial reference is subsequently updated (by overwriting from ArcGIS Pro or other client methods), the update operation modifies only the source layer’s definition and does not automatically propagate to existing view layers. However, individual layer endpoints within the view reflect the updated spatial reference (WGS 84 4326), while the map service root endpoint shows the original spatial reference (NAD 1983 US Feet 102630). This is because: - The map service level spatial reference is set when the view is created and represents the coordinate system for the overall service. - Individual layer definitions can reflect updates from the source layer for data queries and geometry operations.

Workaround

To ensure the view layer fully reflects the updated spatial reference, two options are available:

Recreate the view layer: Delete the existing view and create a new view from the updated source layer. This ensures all properties, including the map service spatial reference, match the current source layer configuration.
Update the existing view layer in ArcGIS Online: If the view layer must be preserved (to retain bookmarks, sharing settings, or other configurations), navigate to the view layer’s Settings page in ArcGIS Online and check for an option to update or refresh properties from the source layer. Alternatively, use the ArcGIS REST API to updateDefinition on the view layer individually.