Fix potential 3Dmap crash when filtered history is empty
Fix potential 3Dmap crash when filtered history is empty

mwerle/EDDiscovery,jgoode/EDDiscovery,vendolis/EDDiscovery,jeoffman/EDDiscovery,jthorpe4/EDDiscovery,vendolis/EDDiscovery,jeoffman/EDDiscovery,jgoode/EDDiscovery,mwerle/EDDiscovery