In an application I am "building" in ArcGIS Online (not server), our starting view is a global level. The issue is that Zoom Level #3 (example) cuts off part of our dataset in the extremes--alaska and the pacific. Zoom level #2 causes the edges of the map to turn null-colored (pic 1), even though the tiles appear to be loading in the cache (pic 2).
Grey bars on side
Tiles appear to load but are not seen
Is there a way to address this null space in ArcGIS Online?
I made a posting on geonet.esri.com. Hopefully it gets some attention.