I am facing this error from last two days.i have one secure feature service and custom base map service in arcgis server .Every thing works fine.when i published web map from portal base-map added successfully and secure service also added on the web-map. when i try to download this web-map from my Samsung galaxy device. Base-map download successfully.But the polygon data from secure feature service not download.it throws fallowing error.
"The map or data could not be loaded.try downloading your map again."i tried many times but always same error came.please help what can be the reason.