diff --git a/src/AcDream.Runtime/Gameplay/RuntimeLocalPlayerMovementState.cs b/src/AcDream.Runtime/Gameplay/RuntimeLocalPlayerMovementState.cs
index 464f5b9a..0b55e575 100644
--- a/src/AcDream.Runtime/Gameplay/RuntimeLocalPlayerMovementState.cs
+++ b/src/AcDream.Runtime/Gameplay/RuntimeLocalPlayerMovementState.cs
@@ -449,6 +449,13 @@ public sealed class RuntimeLocalPlayerMovementState
     {
         _controller?.RetireRuntimePublication();
         _controller = controller;
+        // The PRODUCTION install path must carry the same wiring the
+        // internal Controller setter applies: this line was missing, so
+        // every live graphical controller ran with a null OnInterfaceText
+        // and client-local refusals (jump-in-air) silently vanished —
+        // proven by the round-3 probe line
+        // "[jump] ReportJumpRefusal result=NotGrounded hasCallback=False".
+        controller.OnInterfaceText = _onInterfaceText;
         ControllerOwnershipEpoch++;
         Interlocked.Increment(ref _revision);
     }
diff --git a/tests/AcDream.Runtime.Tests/Gameplay/RuntimeLocalPlayerMovementStateTests.cs b/tests/AcDream.Runtime.Tests/Gameplay/RuntimeLocalPlayerMovementStateTests.cs
index f2723e9c..e64009b8 100644
--- a/tests/AcDream.Runtime.Tests/Gameplay/RuntimeLocalPlayerMovementStateTests.cs
+++ b/tests/AcDream.Runtime.Tests/Gameplay/RuntimeLocalPlayerMovementStateTests.cs
@@ -172,6 +172,28 @@ public sealed class RuntimeLocalPlayerMovementStateTests
         Assert.Equal(AcDream.Core.Chat.RetailLogTextType.ClientLocal, received[0].Type);
     }
 
+    [Fact]
+    public void OnInterfaceText_CommitRuntimeOwnedController_CarriesTheCallback()
+    {
+        // The PRODUCTION install path (CommitRuntimeOwnedController via the
+        // publication lifecycle) bypasses the internal Controller setter.
+        // It shipped WITHOUT the OnInterfaceText application, so every live
+        // graphical controller ran with a null callback and client-local
+        // refusals silently vanished — round-3 probe evidence:
+        // "[jump] ReportJumpRefusal result=NotGrounded hasCallback=False".
+        using var movement = new RuntimeLocalPlayerMovementState();
+        var received = new List<string>();
+        movement.OnInterfaceText = (text, _) => received.Add(text);
+
+        var controller = new PlayerMovementController(new PhysicsEngine());
+        movement.CommitRuntimeOwnedController(controller);
+
+        Assert.NotNull(controller.OnInterfaceText);
+        controller.OnInterfaceText!(
+            "commit-path line", AcDream.Core.Chat.RetailLogTextType.ClientLocal);
+        Assert.Equal(["commit-path line"], received);
+    }
+
     [Fact]
     public void OnInterfaceText_SetAfterControllerInstall_StillAppliesToTheCurrentController()
     {