diff --git a/GFramework.Core/coroutine/CoroutineScheduler.cs b/GFramework.Core/coroutine/CoroutineScheduler.cs
index 8c20f38..eec8b37 100644
--- a/GFramework.Core/coroutine/CoroutineScheduler.cs
+++ b/GFramework.Core/coroutine/CoroutineScheduler.cs
@@ -395,7 +395,8 @@ public sealed class CoroutineScheduler(
         if (!_tagged.TryGetValue(tag, out var handles))
             return 0;
 
-        return handles.Count(Kill);
+        var copy = handles.ToArray();
+        return copy.Count(Kill);
     }
 
     /// <summary>
@@ -486,6 +487,9 @@ public sealed class CoroutineScheduler(
                 case WaitForCoroutine wfc:
                     wfc.Complete();
                     break;
+                default:
+                    // 其他类型的等待指令不需要特殊处理
+                    break;
             }
 
             s.State = CoroutineState.Running;