--- loncom/interface/lonviewcoauthors.pm	2024/05/24 15:27:59	1.5
+++ loncom/interface/lonviewcoauthors.pm	2024/08/31 21:00:44	1.6
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to display the coauthors
 #
-# $Id: lonviewcoauthors.pm,v 1.5 2024/05/24 15:27:59 raeburn Exp $
+# $Id: lonviewcoauthors.pm,v 1.6 2024/08/31 21:00:44 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -401,6 +401,7 @@ sub print_coauthors {
         my (%userinfo,%showuser);
         foreach my $item (keys(%coauthors)) {
             my ($username,$domain,$userrole) = split(/:/,$item);
+            next if (($username eq '') && ($domain eq''));
             my ($start,$end) = split(/:/,$coauthors{$item});
             next if ($start eq '-1' && $end eq '-1');
             if (ref($userinfo{$username.':'.$domain}) eq 'HASH') {