diff --git a/HellionChat/PluginHostFactory.cs b/HellionChat/PluginHostFactory.cs
index 36a723d..cdf47e5 100644
--- a/HellionChat/PluginHostFactory.cs
+++ b/HellionChat/PluginHostFactory.cs
@@ -225,6 +225,36 @@ internal static class PluginHostFactory
             );
         });
 
+        // Factory-lambdas for ChunkRenderer, PayloadHandler, and Lender<PayloadHandler>
+        // because all three are internal-sealed (ActivatorUtilities can't reflect into
+        // internal ctors) and Lender<T> has an internal ctor by design.
+        services.AddSingleton(sp => new Ui.Components.ChunkRenderer(
+            sp.GetRequiredService<ThemeRegistry>(),
+            sp.GetRequiredService<FontManager>(),
+            sp.GetRequiredService<ILogger<Ui.Components.ChunkRenderer>>(),
+            sp.GetRequiredService<GameFunctions.GameFunctions>()
+        ));
+        services.AddSingleton(sp => new PayloadHandler(
+            sp.GetRequiredService<ThemeRegistry>(),
+            sp.GetRequiredService<IpcManager>(),
+            sp.GetRequiredService<GameFunctions.GameFunctions>(),
+            sp.GetRequiredService<Ui.Components.InputBar>(),
+            sp.GetRequiredService<Ui.Windows.MainWindow>(),
+            sp.GetRequiredService<Ui.Components.ChunkRenderer>(),
+            sp.GetRequiredService<ILogger<PayloadHandler>>()
+        ));
+        services.AddSingleton(sp => new Lender<PayloadHandler>(() =>
+            new PayloadHandler(
+                sp.GetRequiredService<ThemeRegistry>(),
+                sp.GetRequiredService<IpcManager>(),
+                sp.GetRequiredService<GameFunctions.GameFunctions>(),
+                sp.GetRequiredService<Ui.Components.InputBar>(),
+                sp.GetRequiredService<Ui.Windows.MainWindow>(),
+                sp.GetRequiredService<Ui.Components.ChunkRenderer>(),
+                sp.GetRequiredService<ILogger<PayloadHandler>>()
+            )
+        ));
+
         // Block C — Windows. WindowSystem.AddWindow is called from
         // PluginLifecycle.LoadAsync on the framework thread.
         services.AddSingleton(sp => new Ui.Windows.SettingsWindow(