diff --git a/src/AcDream.App/Rendering/GameWindow.cs b/src/AcDream.App/Rendering/GameWindow.cs
index 7c53a03..2e3e849 100644
--- a/src/AcDream.App/Rendering/GameWindow.cs
+++ b/src/AcDream.App/Rendering/GameWindow.cs
@@ -3897,7 +3897,7 @@ public sealed class GameWindow : IDisposable
         // position by adding the residual back (so the visual doesn't jerk
         // for one frame before the residual decay kicks in on the next tick).
         System.Numerics.Vector3 preSnapPos = entity.Position;
-        entity.Position = worldPos;
+        entity.SetPosition(worldPos);
         entity.Rotation = rot;
 
         // Commit B 2026-04-29 — keep the shadow registry in sync with
@@ -4017,11 +4017,11 @@ public sealed class GameWindow : IDisposable
                 if (!update.IsGrounded)
                 {
                     // Undo the unconditional entity hard-snap at the top of the
-                    // function (entity.Position = worldPos): the body is mid-arc
+                    // function (entity.SetPosition(worldPos)): the body is mid-arc
                     // and TickAnimations will write entity = body next frame
                     // anyway. Setting entity = body now prevents a 1-frame
                     // teleport-to-server-then-yank-back rubber-band.
-                    entity.Position = rmState.Body.Position;
+                    entity.SetPosition(rmState.Body.Position);
                     return;
                 }
 
@@ -4130,12 +4130,12 @@ public sealed class GameWindow : IDisposable
                 }
 
                 // Sync the visible entity to the body — overrides the unconditional
-                // entity.Position = worldPos snap at the top of this function.
+                // entity.SetPosition(worldPos) snap at the top of this function.
                 // For the far-snap branch this is a no-op (body == worldPos); for
                 // the near-enqueue branch this prevents a 1-frame teleport-then-
                 // yank-back rubber-band as TickAnimations chases worldPos via the
                 // queue.
-                entity.Position = rmState.Body.Position;
+                entity.SetPosition(rmState.Body.Position);
                 return;
             }
 
@@ -4267,7 +4267,7 @@ public sealed class GameWindow : IDisposable
                     rmState.ServerVelocity);
             }
 
-            entity.Position = rmState.Body.Position;
+            entity.SetPosition(rmState.Body.Position);
             entity.Rotation = rmState.Body.Orientation;
         }
 
@@ -4312,7 +4312,7 @@ public sealed class GameWindow : IDisposable
                     resolved.Position.X, resolved.Position.Y, resolved.Position.Z);
 
                 // 3. Snap player entity + controller.
-                entity.Position = snappedPos;
+                entity.SetPosition(snappedPos);
                 entity.Rotation = rot;
                 _playerController.SetPosition(snappedPos, resolved.CellId);
 
diff --git a/src/AcDream.App/Streaming/StreamingController.cs b/src/AcDream.App/Streaming/StreamingController.cs
index c320429..53b0030 100644
--- a/src/AcDream.App/Streaming/StreamingController.cs
+++ b/src/AcDream.App/Streaming/StreamingController.cs
@@ -107,6 +107,12 @@ public sealed class StreamingController
                     Console.WriteLine(
                         $"streaming: worker CRASHED: {crashed.Error}");
                     break;
+                case LandblockStreamResult.Promoted:
+                    // TODO(A.5 T13): merge promoted entities into existing
+                    // GpuWorldState entry via AddEntitiesToExistingLandblock.
+                    // Today the streamer never produces Promoted (only LoadNear /
+                    // LoadFar), so this arm is unreachable and silently consumed.
+                    break;
             }
         }
     }