I have an EB app hosted on ArcGIS Online that includes the Add Data widget. The documentation for this widget says that it can be used to add KMZ files to the map, but I can't get that to work. I've tried with two KMZ files and one KML file. These files are between 4 and 12 KB in size and only contain a couple of polygons. In each case, I get an error that says, " The File [filename] cannot be successfully uploaded." I am able to add shapefiles to the map. Is there a trick to this?
