Symbologies grouped in mXD is rendering multiple times in TOC

[EricG66]

Code Snippet

In ArcMap the symbology for certain items is grouped (notice in yellow the grouped categories called Group1, Group2, etc…) :

Service created from ArcMap:
https://services.arcgis.com/EgePHk52tsFjmhbJ/ArcGIS/rest/services/TestTOC/FeatureServer

Service created from Pro:
https://services.arcgis.com/EgePHk52tsFjmhbJ/arcgis/rest/services/TestTOC_PRO/FeatureServer

---

<esri:TableOfContents x:Name="TableOfContent" Grid.Row="1" Height="250" Margin="5,5,0,5"
GeoView="{Binding ElementName=MyMapView}" ShowLegend="False" Style="{StaticResource TOC}"/>

MXD Symbology Grouped – You can see in both the rows multiple values are combined and one label is provided (Observation Well and Gas Storage)

TOC rendered in application- It renders each values individually rather than combining in one.

Tested with the following versions:

[mbranscomb]

This issue is dependent on support for this information being included in the Webmap specification. Once it is being written by publishing applications then consuming client applications can ensure they read and honor the unique value grouping information.