fixed bugs with queue handling. At least most of them

Azaion.Suite/App.xaml.cs

@@ -145,6 +145,9 @@ public partial class App
             StartMain();
             _host.Start();
             EventManager.RegisterClassHandler(typeof(UIElement), UIElement.PreviewKeyDownEvent, new RoutedEventHandler(GlobalKeyHandler));
+            var datasetExplorer = _host.Services.GetRequiredService<DatasetExplorer>();
+            datasetExplorer.Show();
+            datasetExplorer.Hide();
             _host.Services.GetRequiredService<MainSuite>().Show();
         };
         login.Closed += (sender, args) =>