Fixing bug when a new instance is called when another already exists.

App.xaml.cs

@@ -71,19 +71,22 @@ protected override void OnActivated(IActivatedEventArgs args)
 
             if (widgetArgs != null)
             {
-                var rootFrame = new Frame();
-                rootFrame.NavigationFailed += OnNavigationFailed;
-                Window.Current.Content = rootFrame;
+                if (widgetArgs.IsLaunchActivation)
+                {
+                    var rootFrame = new Frame();
+                    rootFrame.NavigationFailed += OnNavigationFailed;
+                    Window.Current.Content = rootFrame;
 
-                widget1 = new XboxGameBarWidget(
-                    widgetArgs,
-                    Window.Current.CoreWindow, 
-                    rootFrame);
-                rootFrame.Navigate(typeof(MainPage));
+                    widget1 = new XboxGameBarWidget(
+                        widgetArgs,
+                        Window.Current.CoreWindow,
+                        rootFrame);
+                    rootFrame.Navigate(typeof(MainPage));
 
-                Window.Current.Closed += MainPageWindow_Closed;
+                    Window.Current.Closed += MainPageWindow_Closed;
 
-                Window.Current.Activate();
+                    Window.Current.Activate();
+                }
             }
             else
             {
@@ -92,6 +95,11 @@ protected override void OnActivated(IActivatedEventArgs args)
 
         }
 
+        /// <summary>
+        /// Handles the closing event sent to Widget's main window.
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
         private async void MainPageWindow_Closed(object sender, Windows.UI.Core.CoreWindowEventArgs e)
         {
             widget1 = null;