Since the Explorer app updated in June, the popups in the map are no longer working. The popup displays the fields as configured but there is no data. The popups work as expected from the web map in ArcGIS Online. Also, we have some mobile devices where the Explorer app has not yet been updated and the popups do display the data in the Explorer app version prior to the June 2017 update.
The web map is 'St. Louis County, MN - County Land Explorer' and is open to the public and can be found in the Explorer app by searching 'St. Louis County, MN'.
Any ideas? Does the popup need to be configured differently?