Services published from ArcGIS Pro 3.1.x are not drawn in ArcGIS Business Analyst Web App.

Workaround

1. Open the web map in Map Viewer Classic. 
2. Click the symbology and change the symbology for the features on the layer. 
3. Save the individual layer. 
4. Save the web map. 
5. Open ArcGIS Business Analyst Web App in a browser (https://bao.arcgis.com/) and select Add.
6. Click Add Data, and select 'Web Maps and Layers'.
7. Select the newly created web map. 
8. It is observed that the service is displayed shows in the contents and the legend of the map, and the features are also drawn on the map. 

Steps to Reproduce