Index: lams_learning/web/grouping/wait.jsp
===================================================================
diff -u -r56ec8d9806c22331d9483e197f0e270b638471be -re68dab8eddae2efb3468bd1a810862bf3d3ceb0f
--- lams_learning/web/grouping/wait.jsp	(.../wait.jsp)	(revision 56ec8d9806c22331d9483e197f0e270b638471be)
+++ lams_learning/web/grouping/wait.jsp	(.../wait.jsp)	(revision e68dab8eddae2efb3468bd1a810862bf3d3ceb0f)
@@ -42,7 +42,7 @@
 			<input type="hidden" name="force" value="${groupingForm.previewLesson}" />
 		
 			<div class="activity-bottom-buttons">
-				<button class="btn btn-primary na">
+				<button type="submit" class="btn btn-primary na">
 					<fmt:message key="label.next.button" />
 				</button>
 			</div>