Index: lams_central/src/java/org/lamsfoundation/lams/authoring/ObjectExtractor.java
===================================================================
diff -u -r061455c7b3bf7a09ab42621cbb2e71890346c55f -rf91b60c911a3e32e19a35b3c36ee4f85690b8cf4
--- lams_central/src/java/org/lamsfoundation/lams/authoring/ObjectExtractor.java	(.../ObjectExtractor.java)	(revision 061455c7b3bf7a09ab42621cbb2e71890346c55f)
+++ lams_central/src/java/org/lamsfoundation/lams/authoring/ObjectExtractor.java	(.../ObjectExtractor.java)	(revision f91b60c911a3e32e19a35b3c36ee4f85690b8cf4)
@@ -652,6 +652,7 @@
 	    for (JsonNode groupDetails : groupsList) {
 		Group group = extractGroupObject((ObjectNode) groupDetails, existingGroups);
 		group.setGrouping(grouping);
+		grouping.getGroups().add(group);
 		groups.put(group.getGroupUIID(), group);
 		existingGroups.remove(group);
 	    }