Index: lams_learning/src/java/org/lamsfoundation/lams/learning/web/util/LearningWebUtil.java
===================================================================
diff -u -r81bec2c4c018269cb6a8d65212aae7e37b406fb3 -r4178946e3eca32b05e44562053a1cfafcf6a872c
--- lams_learning/src/java/org/lamsfoundation/lams/learning/web/util/LearningWebUtil.java	(.../LearningWebUtil.java)	(revision 81bec2c4c018269cb6a8d65212aae7e37b406fb3)
+++ lams_learning/src/java/org/lamsfoundation/lams/learning/web/util/LearningWebUtil.java	(.../LearningWebUtil.java)	(revision 4178946e3eca32b05e44562053a1cfafcf6a872c)
@@ -245,8 +245,13 @@
 	ActivityURL activityURL = new ActivityURL();
 	activityURL.setType(activity.getClass().getSimpleName());
 
-	String url = activityMapping.getActivityURL(activity);
-	activityURL.setUrl(url);
+	if ( isFloating && activity.isFloatingActivity() ) {
+	    // special case - progress engine. Do not want the unknown activity warning
+	    activityURL.setUrl(null);
+	} else {
+	    activityURL.setUrl(activityMapping.getActivityURL(activity));
+	}
+
 	activityURL.setActivityId(activity.getActivityId());
 	activityURL.setTitle(activity.getTitle());
 	activityURL.setDescription(activity.getDescription());