Update

Assets/Scripts/Network/BasicSpawner.cs

@@ -38,19 +38,23 @@ namespace Hallucinate.UI
 
         private async Task EnsureRunnerExists()
         {
-            if (_runner != null)
+            if (_runner == null)
             {
-                // Nếu runner cũ vẫn đang chạy hoặc lỗi, dọn dẹp nó
-                await _runner.Shutdown();
-                if (_runner != null && _runner.gameObject != null)
-                {
-                    Destroy(_runner);
-                }
-                _runner = null;
+                _runner = GetComponent<NetworkRunner>();
+            }
+
+            if (_runner != null && _runner.IsRunning)
+            {
+                await _runner.Shutdown();
+            }
+
+            if (_runner == null)
+            {
+                _runner = gameObject.AddComponent<NetworkRunner>();
             }
 
-            _runner = gameObject.AddComponent<NetworkRunner>();
             _runner.ProvideInput = true;
+            _runner.RemoveCallbacks(this);
             _runner.AddCallbacks(this);
         }
 
@@ -186,12 +190,17 @@ namespace Hallucinate.UI
             {
                 runner.Despawn(networkObject);
                 _spawnedCharacters.Remove(player);
-                if (runner.IsServer) runner.Shutdown();
+                // Chỉ Shutdown nếu người thoát chính là Server (Host)
+                if (runner.IsServer && player == runner.LocalPlayer) 
+                {
+                    runner.Shutdown();
+                }
             }
         }
 
         public void OnShutdown(NetworkRunner runner, ShutdownReason shutdownReason)
         {
+            Debug.LogWarning($"[Fusion] Shutdown occurred. Reason: {shutdownReason}");
             OnShutdownEvent?.Invoke(shutdownReason.ToString());
         }
 

Assets/Scripts/UI/LobbyController.cs

@@ -89,14 +89,14 @@ namespace Hallucinate.UI
                 });
             }
 
-            // Đăng ký sự kiện từ Spawner (Sử dụng Instance)
+            // Đăng ký sự kiện từ Spawner
             if (BasicSpawner.Instance != null)
             {
                 RegisterSpawnerEvents();
+                _ = BasicSpawner.Instance.StartLobby();
             }
             else
             {
-                // Nếu chưa có, thử tìm sau một chút
                 Invoke(nameof(RegisterSpawnerEvents), 0.1f);
             }
         }
@@ -107,6 +107,7 @@ namespace Hallucinate.UI
             BasicSpawner.Instance.OnSessionListUpdatedEvent += UpdateRoomList;
             BasicSpawner.Instance.OnJoinFailedEvent += () => { if(_joinPassError != null) _joinPassError.style.display = DisplayStyle.Flex; };
             BasicSpawner.Instance.OnJoinStartedEvent += () => { /* Show loading if needed */ };
+            _ = BasicSpawner.Instance.StartLobby();
         }
 
         public void SetRoomTemplate(VisualTreeAsset template) => _roomItemTemplate = template;
@@ -122,7 +123,7 @@ namespace Hallucinate.UI
             if (_joinContainer != null) _joinContainer.style.display = DisplayStyle.Flex;
             if (_createContainer != null) _createContainer.style.display = DisplayStyle.None;
             if (_loungeContainer != null) _loungeContainer.style.display = DisplayStyle.None;
-            BasicSpawner.Instance?.StartLobby();
+            _ = BasicSpawner.Instance?.StartLobby();
         }
 
         public void ShowCreate()
@@ -144,11 +145,7 @@ namespace Hallucinate.UI
         private async void OnCreateRoomClicked()
         {
             var spawner = BasicSpawner.Instance;
-            if (spawner == null)
-            {
-                Debug.LogError("[LobbyController] BasicSpawner.Instance is missing!");
-                return;
-            }
+            if (spawner == null) return;
 
             string id = _roomIDInput != null && !string.IsNullOrEmpty(_roomIDInput.value) 
                 ? _roomIDInput.value.Trim() 
@@ -165,14 +162,7 @@ namespace Hallucinate.UI
                 : null;
 
             bool success = await spawner.StartHost(id, pass);
-            if (success)
-            {
-                ShowLounge(name);
-            }
-            else
-            {
-                Debug.LogWarning("[LobbyController] Failed to create room. Please check AppID/Region.");
-            }
+            if (success) ShowLounge(name);
         }
 
         private void UpdateRoomList(List<SessionInfo> sessions)