Index: lams_central/web/includes/javascript/addLesson.js
===================================================================
diff -u -r0993bbd812a25ddb84feec64dd0e4847ce32d164 -r84bfa78ae70097288bacdc2ca4b6631f2c49fc6e
--- lams_central/web/includes/javascript/addLesson.js	(.../addLesson.js)	(revision 0993bbd812a25ddb84feec64dd0e4847ce32d164)
+++ lams_central/web/includes/javascript/addLesson.js	(.../addLesson.js)	(revision 84bfa78ae70097288bacdc2ca4b6631f2c49fc6e)
@@ -322,7 +322,7 @@
 
 	if (!learningDesignId) {
 		var ldNode = tree.treeview('getSelected')[0];
-		if (ldNode == null) {
+		if (ldNode == null || ldNode.learningDesignId == null) {
 			learningDesignId = +$('div#accessDiv .access-selected').data('learningDesignId');
 		} else {
 			learningDesignId = ldNode.learningDesignId;