diff --git a/src/main/java/org/gcube/portlets/user/newsfeed/client/panels/NewsFeedPanel.java b/src/main/java/org/gcube/portlets/user/newsfeed/client/panels/NewsFeedPanel.java
index dd499db..0db4500 100644
--- a/src/main/java/org/gcube/portlets/user/newsfeed/client/panels/NewsFeedPanel.java
+++ b/src/main/java/org/gcube/portlets/user/newsfeed/client/panels/NewsFeedPanel.java
@@ -1040,9 +1040,13 @@ public class NewsFeedPanel extends Composite {
 	 * @param quantity
 	 */
 	public void loadMorePosts(final int quantity, boolean isSortingByLastCommentedposts) {
-		if (isSortingByLastCommentedposts) 
-			showLoader();
 		int from = (fromStartingPoint == null) ? allUpdates.size()+1 : fromStartingPoint;
+		if (isSortingByLastCommentedposts) {
+			showLoader();
+			if ((from == 0))
+				from = 1;
+		}
+
 		GWT.log("StartingPoint = " + from);
 		newsService.getMoreFeeds(from, quantity, new AsyncCallback<MoreFeedsBean>() {
 			@Override
diff --git a/src/main/java/org/gcube/portlets/user/newsfeed/client/ui/FilterPanel.java b/src/main/java/org/gcube/portlets/user/newsfeed/client/ui/FilterPanel.java
index 227e823..b0396f3 100644
--- a/src/main/java/org/gcube/portlets/user/newsfeed/client/ui/FilterPanel.java
+++ b/src/main/java/org/gcube/portlets/user/newsfeed/client/ui/FilterPanel.java
@@ -51,7 +51,7 @@ public class FilterPanel extends Composite {
 		allUpdatesLink.setActive(false);
 		recentCommentsLink.setActive(true);
 		caller.setCurrentFilter(FilterType.RECENT_COMMENTS);
-		int loadedPostsInView = caller.getAllUpdatesSize();
+		int loadedPostsInView = caller.getAllUpdatesSize() + 1;
 		int quantity = loadedPostsInView < 100 ? 100 - loadedPostsInView : loadedPostsInView;
 		caller.loadMorePosts(quantity, true);
 	}
diff --git a/src/main/java/org/gcube/portlets/user/newsfeed/server/NewsServiceImpl.java b/src/main/java/org/gcube/portlets/user/newsfeed/server/NewsServiceImpl.java
index 6cf8958..a5a81aa 100644
--- a/src/main/java/org/gcube/portlets/user/newsfeed/server/NewsServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/user/newsfeed/server/NewsServiceImpl.java
@@ -104,7 +104,7 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 	private ElasticSearchClient escl;
 
 	private final static int MAX_POSTS_NO = 30;
-	
+
 	public void init() {
 		store = new DBCassandraAstyanaxImpl();
 		try {
@@ -494,9 +494,11 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 		try {
 			rangeFeeds = store.getRecentFeedsByVREAndRange(vreid, start, quantity);
 			organizationFeeds = rangeFeeds.getFeeds();
-			for (Feed feed : organizationFeeds) {
-				feedsMap.put(feed.getKey(), feed);		
-				//System.out.println("->\n"+feed.getDescription());
+			if (organizationFeeds != null) {
+				for (Feed feed : organizationFeeds) {
+					feedsMap.put(feed.getKey(), feed);		
+					//System.out.println("->\n"+feed.getDescription());
+				}
 			}
 		}
 		catch (Exception e) {