diff --git a/samples/newChat/index.html b/samples/newChat/index.html
index 32785e0f9..473037d26 100644
--- a/samples/newChat/index.html
+++ b/samples/newChat/index.html
@@ -216,7 +216,7 @@ <h1 class="dialog__title j-dialog__title"><%- title %></h1>
                 <i class="material-icons">account_circle</i>
             </span>
             <div class="message__content_wrap">
-                <p class="message__sender_name"><%- sender ? sender.name : message.sender_id %></p>
+                <p class="message__sender_name"><%- sender ? sender.name : 'unknown user (' + message.sender_id + ')' %></p>
                 <% if (message.message) { %>
                     <p class="message__text"><%= message.message %></p>
                 <% } %>
diff --git a/samples/newChat/js/dialog.js b/samples/newChat/js/dialog.js
index 02de0daf1..d2ea18e2e 100644
--- a/samples/newChat/js/dialog.js
+++ b/samples/newChat/js/dialog.js
@@ -30,7 +30,7 @@ Dialog.prototype.init = function () {
             position = container.scrollHeight - (container.scrollTop + container.offsetHeight);
 
         if (container.classList.contains('full')) {
-            container.removeEventListener('scroll', loadMoreDialogs);
+            return false;
         }
 
         if (position <= 50 && !container.classList.contains('loading')) {
@@ -476,6 +476,10 @@ Dialog.prototype.updateDialog = function (updates) {
 
         messageModule.sendMessage(dialogId, updatedMsg);
 
+        if(updates.title){
+            self.updateDialogUi(dialogId, updates.title);
+        }
+
         router.navigate('/dialog/' + dialog._id);
     }).catch(function(error){
         console.error(error);
diff --git a/samples/newChat/js/message.js b/samples/newChat/js/message.js
index e45e80c5d..d7cafa749 100644
--- a/samples/newChat/js/message.js
+++ b/samples/newChat/js/message.js
@@ -251,6 +251,7 @@ Message.prototype.renderMessage = function (message, setAsFirst) {
 
         messagesHtml = helpers.fillTemplate('tpl_message', {
             message: {
+                sender_id: message.sender_id,
                 message: messageText,
                 attachments: message.attachments,
                 date_sent: message.date_sent
diff --git a/samples/newChat/js/user.js b/samples/newChat/js/user.js
index 77bf41c1c..1eab36c15 100644
--- a/samples/newChat/js/user.js
+++ b/samples/newChat/js/user.js
@@ -64,7 +64,9 @@ User.prototype.getUsersByIds = function (userList) {
                         return item.user.id === id;
                     });
 
-                    self.addToCache(user.user);
+                    if(user !== undefined) {
+                        self.addToCache(user.user);
+                    }
                 });
                 resolve();
             }