diff --git a/AmiReel.csproj b/AmiReel.csproj
index 43c76f4..78d3d0b 100644
--- a/AmiReel.csproj
+++ b/AmiReel.csproj
@@ -46,6 +46,11 @@
   <ItemGroup>
     <EmbeddedResource Include="ThirdParty\ffmpeg.exe" Condition="Exists('ThirdParty\ffmpeg.exe')" LogicalName="AmiReel.Tools.ffmpeg.exe" />
     <EmbeddedResource Include="ThirdParty\ffprobe.exe" Condition="Exists('ThirdParty\ffprobe.exe')" LogicalName="AmiReel.Tools.ffprobe.exe" />
+    <!-- Loaded at runtime via GetManifestResourceStream for the title bar icon (MainWindow.xaml.cs).
+         The Assets\*.png Content items above go through the ms-appx:// / MRT resource pipeline,
+         which a single-file self-contained publish bundles into the exe in a way that ms-appx://
+         can no longer resolve at runtime — this embedded copy sidesteps that entirely. -->
+    <EmbeddedResource Include="Assets\Square44x44Logo.scale-200.png" LogicalName="AmiReel.Assets.TitleBarIcon.png" />
   </ItemGroup>
 
   <!--
diff --git a/MainWindow.xaml b/MainWindow.xaml
index 31668f9..2ef3bd5 100644
--- a/MainWindow.xaml
+++ b/MainWindow.xaml
@@ -16,7 +16,7 @@
 
         <Grid x:Name="AppTitleBar" Grid.Row="0" Height="44" Background="{ThemeResource PanelBrush}">
             <StackPanel Orientation="Horizontal" Spacing="10" VerticalAlignment="Center" Margin="14,0,0,0">
-                <Image Source="ms-appx:///Assets/Square44x44Logo.scale-200.png"
+                <Image x:Name="TitleBarIcon"
                        Width="20"
                        Height="20"
                        Stretch="Uniform" />
diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
index d9e69b8..b7dedb5 100644
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -2,9 +2,12 @@ using Microsoft.UI;
 using Microsoft.UI.Windowing;
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
+using Microsoft.UI.Xaml.Media.Imaging;
 using System;
 using System.IO;
+using System.Reflection;
 using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.WindowsRuntime;
 using Windows.Graphics;
 using Windows.UI;
 using WinRT.Interop;
@@ -36,6 +39,7 @@ public sealed partial class MainWindow : Window
             AppWindow.SetIcon(executablePath);
 
         SetDefaultSizeAndPosition();
+        LoadTitleBarIcon();
 
         // Navigate the root frame to the main page on startup.
         RootFrame.Navigate(typeof(MainPage));
@@ -43,6 +47,30 @@ public sealed partial class MainWindow : Window
         AppWindow.Closing += AppWindow_Closing;
     }
 
+    /// <summary>
+    /// Loads the title bar icon from an embedded resource instead of an "ms-appx:///Assets/..."
+    /// URI. A single-file self-contained publish bundles Content/Assets items into the exe in a
+    /// way the ms-appx resource pipeline can no longer resolve at runtime, leaving the title bar
+    /// blank; a plain embedded resource stream works the same in every publish mode.
+    /// </summary>
+    private async void LoadTitleBarIcon()
+    {
+        try
+        {
+            Assembly assembly = Assembly.GetExecutingAssembly();
+            using Stream? stream = assembly.GetManifestResourceStream("AmiReel.Assets.TitleBarIcon.png");
+            if (stream is null) return;
+
+            BitmapImage bitmap = new();
+            await bitmap.SetSourceAsync(stream.AsRandomAccessStream());
+            TitleBarIcon.Source = bitmap;
+        }
+        catch
+        {
+            // Non-critical: the title bar simply shows no icon if this fails.
+        }
+    }
+
     private void SetDefaultSizeAndPosition()
     {
         const int DefaultWidth = 1280;