diff --git a/Azaion.Annotator/MainWindow.xaml b/Azaion.Annotator/MainWindow.xaml
index 5abc0d8..eb58fa2 100644
--- a/Azaion.Annotator/MainWindow.xaml
+++ b/Azaion.Annotator/MainWindow.xaml
@@ -67,7 +67,6 @@
             <ColumnDefinition Width="4"/>
             <ColumnDefinition Width="200" />
         </Grid.ColumnDefinitions>
-
         <Menu Grid.Row="0"
               Grid.Column="0"
               Grid.ColumnSpan="3"
@@ -186,6 +185,7 @@
             ResizeBehavior="PreviousAndNext"
             HorizontalAlignment="Stretch"
             VerticalAlignment="Stretch"
+            DragCompleted="Thumb_OnDragCompleted"
             />
         <wpf:VideoView
             Grid.Row="1"
@@ -206,6 +206,7 @@
             ResizeBehavior="PreviousAndNext"
             HorizontalAlignment="Stretch"
             VerticalAlignment="Stretch"
+            DragCompleted="Thumb_OnDragCompleted"
         />
         <DataGrid x:Name="DgAnnotations"
                   Grid.Column="4"
diff --git a/Azaion.Annotator/MainWindow.xaml.cs b/Azaion.Annotator/MainWindow.xaml.cs
index 157775e..be98a81 100644
--- a/Azaion.Annotator/MainWindow.xaml.cs
+++ b/Azaion.Annotator/MainWindow.xaml.cs
@@ -2,6 +2,7 @@
 using System.IO;
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
 using System.Windows.Input;
 using Azaion.Annotator.DTO;
 using Azaion.Annotator.Extensions;
@@ -153,7 +154,7 @@ public partial class MainWindow
         SizeChanged += async (_, _) => await SaveUserSettings();
         LocationChanged += async (_, _) => await SaveUserSettings();
         StateChanged += async (_, _) => await SaveUserSettings();
-
+        
         Editor.FormState = _formState;
         Editor.Mediator = _mediator;
         DgAnnotations.ItemsSource = _formState.AnnotationResults;
@@ -350,5 +351,12 @@ public partial class MainWindow
             ShowTimeAnnotations(res.Time);
         };
     }
+
+    private void Thumb_OnDragCompleted_(object sender, DragCompletedEventArgs e)
+    {
+        throw new NotImplementedException();
+    }
+
+    private void Thumb_OnDragCompleted(object sender, DragCompletedEventArgs e) => _ = SaveUserSettings();
 }