ArcGIS Server feature services with custom parameters added to ArcGIS Online from the New Item option on 'My content' page fail to open correctly in ArcGIS Online Map Viewer.

Solução Provisória

Add the layer directly to ArcGIS Online Map Viewer with the custom parameter. This opens as expected. Next, save the layer in ArcGIS Online using the Save As option.

Etapas para Reproduzir