--- loncom/interface/loncoursedata.pm	2003/06/16 15:55:27	1.77
+++ loncom/interface/loncoursedata.pm	2003/06/17 21:45:36	1.78
@@ -1,6 +1,6 @@
 # The LearningOnline Network with CAPA
 #
-# $Id: loncoursedata.pm,v 1.77 2003/06/16 15:55:27 matthew Exp $
+# $Id: loncoursedata.pm,v 1.78 2003/06/17 21:45:36 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -143,12 +143,20 @@ sub get_sequence_assessment_data {
     #
     # We need to keep track of which sequences contain homework problems
     # 
+    my $previous_too;
     my $previous;
     while (scalar(@Nested_Sequences)) {
+        $previous_too = $previous;
         $previous = $curRes;
         $curRes = $iterator->next();
         my $currentmap = $Nested_Sequences[-1]; # Last one on the stack
         if ($curRes == $iterator->BEGIN_MAP()) {
+            if (! ref($previous)) {
+                $previous = $previous_too;
+            }
+            if (! ref($previous)) {
+                next;
+            }
             # get the map itself, instead of BEGIN_MAP
             $title = $previous->title();
             $symb  = $previous->symb();