Selected features of a map image layer are not highlighted in Portal for ArcGIS Map Viewer

Description

In Portal for ArcGIS, when selecting a feature of a map image layer in a Map Viewer web map, the selected feature is not highlighted but the feature's pop-up is displayed, as shown in the image below.

Cause

The Shape field of the feature layer is hidden when it is published as a map image layer to Portal for ArcGIS. Therefore the feature is not highlighted when it is selected in Map Viewer.

Solution or Workaround

1. Open a new project in ArcGIS Pro and connect to the organization's portal. Refer to ArcGIS Pro: Create a project for instructions.
2. In the Catalog pane, on the Portal tab, click My Content.
3. Browse to and right-click the map image layer. Click Add To Current Map.

4. In the Contents pane, right-click the layer, and click Data Design > Fields.
5. In the fields view, in the Visible column, check Visible for the Shape field to turn the field visibility on.

6. On the top ribbon, on the Fields tab, click Save.
7. Overwrite the layer as the map image layer to Portal for ArcGIS. Refer to ArcGIS Pro: Overwrite a map image layer for more information.

Note:
If the Overwrite Web Layer dialog returns a prompt, click OK.

The image below shows the selected feature of the map image layer highlighted in Portal for ArcGIS Map Viewer.