diff --git a/AyCode.Blazor.Components/Services/AcSignalRClientBase.cs b/AyCode.Blazor.Components/Services/AcSignalRClientBase.cs
index 9bd4fd3..fc68986 100644
--- a/AyCode.Blazor.Components/Services/AcSignalRClientBase.cs
+++ b/AyCode.Blazor.Components/Services/AcSignalRClientBase.cs
@@ -139,7 +139,9 @@ namespace AyCode.Blazor.Components.Services
                     return Task.CompletedTask;
                 }
 
+                intoList.Clear();
                 intoList.AddRange(response.ResponseData);
+
                 return Task.CompletedTask;
             }, contextParams);
         }