Bandana contexts (mail boxes, etc.) and spatial resources are not being exported and handled on the import. We cannot do this until we differentiate between the PDF and HTML spatial export, which all users need, and the XML export, which is for admin.s.
Simply move the XML export to Space Admin. and rename it 'Space Backup'. All of the underlying logic is in place to handle export of spatial bandana and resource info.. Review the import procedure (it works for the global import).