Now that my map is pretty and perfect, I'm discovering that I cannot export it properly. I have tried Exporting the Map to PDF, PNG, TIFF, etc. I have tried various settings of image quality and DPI. I have tried various compression methods. Gave up on exporting.
Tried using the Adobe Printer to print a PDF instead. That gives me worse results, with more bands or other artifacts. I've played with some of the Adobe Printer settings with no positive result.
In every type of export/print, I have at least one very obvious horizontal band.
The basemap is not transparent at all (though I wish it was). It is sourced from NCOneMap, a public North Carolina mapping portal/GIS service.
Now that I've spent my morning trying to export a single map (shakes fist at ESRI), does anyone else have some ideas?