Index: lams_learning/src/java/org/lamsfoundation/lams/learning/web/util/LearningWebUtil.java
===================================================================
diff -u -rfd1c6c450376476c752e6be5cb6048a2e370bd42 -r2fa2955025b267cdbf5f59c9d5f1d436ed1ae69f
--- lams_learning/src/java/org/lamsfoundation/lams/learning/web/util/LearningWebUtil.java	(.../LearningWebUtil.java)	(revision fd1c6c450376476c752e6be5cb6048a2e370bd42)
+++ lams_learning/src/java/org/lamsfoundation/lams/learning/web/util/LearningWebUtil.java	(.../LearningWebUtil.java)	(revision 2fa2955025b267cdbf5f59c9d5f1d436ed1ae69f)
@@ -182,8 +182,13 @@
 	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());