diff --git a/Assets/Scripts/FixSystemNew/BodyModule/BodyModuleSystem.cs b/Assets/Scripts/FixSystemNew/BodyModule/BodyModuleSystem.cs
index a42413db1..2a236fa8c 100644
--- a/Assets/Scripts/FixSystemNew/BodyModule/BodyModuleSystem.cs
+++ b/Assets/Scripts/FixSystemNew/BodyModule/BodyModuleSystem.cs
@@ -67,9 +67,6 @@ namespace AibisDream.FixSystem
             }
 
             FixSystemCenter.SystemDic.Register(this);
-
-            // 注册到维修系统管理器
-            RepairSystemManager.Register(this);
         }
 
         /// <summary>捕获插线模块持久状态（分组 + UF + Chip + 高亮/报警）。</summary>
@@ -357,6 +354,9 @@ namespace AibisDream.FixSystem
 
         private void Start()
         {
+            // RepairSystemManager 的 Awake 已在所有场景对象的 Start 前完成。
+            RepairSystemManager.Register(this);
+
             if (_headModuleGroup != null)
             {
                 _headModuleOriginalPos = _headModuleGroup.transform.localPosition;
diff --git a/Assets/Scripts/FixSystemNew/Screen System/Core/RepairSystemManager.cs b/Assets/Scripts/FixSystemNew/Screen System/Core/RepairSystemManager.cs
index 36e0ba7b6..d49dd776f 100644
--- a/Assets/Scripts/FixSystemNew/Screen System/Core/RepairSystemManager.cs	
+++ b/Assets/Scripts/FixSystemNew/Screen System/Core/RepairSystemManager.cs	
@@ -43,11 +43,6 @@ namespace AibisDream.FixSystem
 
         private Sequence _activeScaleTween;
 
-        private void OnDisable()
-        {
-            _registeredSystems.Clear();
-        }
-
         #region 系统注册
 
         /// <summary>
@@ -61,6 +56,12 @@ namespace AibisDream.FixSystem
                 return;
             }
 
+            if (Instance == null)
+            {
+                Debug.LogError($"[RepairSystemManager] 注册失败：管理器尚未初始化", mb);
+                return;
+            }
+
             var type = typeof(T);
             var system = new RegisteredSystem
             {
@@ -71,10 +72,7 @@ namespace AibisDream.FixSystem
                 Offset = Vector3.zero
             };
 
-            if (Instance != null)
-            {
-                Instance._registeredSystems[type] = system;
-            }
+            Instance._registeredSystems[type] = system;
 
             Debug.Log($"[RepairSystemManager] 注册系统: {type.Name}");
         }
diff --git a/Assets/Scripts/Game Loop/GameManager.cs b/Assets/Scripts/Game Loop/GameManager.cs
index 9127e1369..705519b0a 100644
--- a/Assets/Scripts/Game Loop/GameManager.cs	
+++ b/Assets/Scripts/Game Loop/GameManager.cs	
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections;
 using System.Collections.Generic;
 using AibisDream.FixSystem;
@@ -88,8 +88,7 @@ namespace AibisDream
                 return false;
             }
 
-            if (_session.Phase != GameSessionPhase.MainMenu
-                || !TryAcquireCommand(SessionCommandKind.Start))
+            if (!TryAcquireCommand(SessionCommandKind.Start))
             {
                 return false;
             }
@@ -306,6 +305,7 @@ namespace AibisDream
         {
             try
             {
+                // 设置当前状态
                 _session.ResetRuntimeState();
                 if (!TrySetPhase(GameSessionPhase.Starting))
                 {