I'm helping re-configure an Instant App that is being fed by a simple Web Map, neither of which I built. The Web Map contains 2 layers and 1 basemap (see first image). When the Web Map is opened, I'm able to see that the main layer (Assessment Districts) contains 5 unique values (see second image).
The issue here is that when the Web Map is added to the Instant App, the Instant App Legend and Layer List both show duplicates (see third image) for each of the 5 unique values that come from the main layer within the original Web Map.
The Instant App template used was Zone Lookup (which allows users to search for locations within a zone or region. Organize results returned in the search by using the group results by layer option).
Things I've tried:
-Creating a new Instant App and pulling in the original Web Map (same legend and layer list issue)
-Removing the original Web Map from the Instant App and then adding a different Web Map to see if the legend and layer lists still caused issues
-Combing through each of the Instant App configuration options to no avail
-Googling like crazy
Web Map Layers
Web Map's Main Layer Designations
Duplicate Designation Values in Legend and Layer List