diff --git a/v2rayN/v2rayN/Handler/ConfigHandler.cs b/v2rayN/v2rayN/Handler/ConfigHandler.cs
index e33430bb..93981b3b 100644
--- a/v2rayN/v2rayN/Handler/ConfigHandler.cs
+++ b/v2rayN/v2rayN/Handler/ConfigHandler.cs
@@ -945,7 +945,7 @@ namespace v2rayN.Handler
             foreach (string str in arrData)
             {
                 //maybe sub
-                if (Utils.IsNullOrEmpty(subid) && (str.StartsWith(Global.httpsProtocol) || str.StartsWith(Global.httpProtocol)))
+                if (!isSub && (str.StartsWith(Global.httpsProtocol) || str.StartsWith(Global.httpProtocol)))
                 {
                     if (AddSubItem(ref config, str) == 0)
                     {
@@ -1187,7 +1187,15 @@ namespace v2rayN.Handler
                 lstOriSub = LazyConfig.Instance.ProfileItems(subid);
             }
 
-            int counter = AddBatchServers(ref config, clipboardData, subid, isSub, lstOriSub);
+            var counter = 0;
+            if (Utils.IsBase64String(clipboardData))
+            {
+                counter = AddBatchServers(ref config, Utils.Base64Decode(clipboardData), subid, isSub, lstOriSub);
+            }
+            if (counter < 1)
+            {
+                counter = AddBatchServers(ref config, clipboardData, subid, isSub, lstOriSub);
+            }
             if (counter < 1)
             {
                 counter = AddBatchServers(ref config, Utils.Base64Decode(clipboardData), subid, isSub, lstOriSub);
diff --git a/v2rayN/v2rayN/Tool/Utils.cs b/v2rayN/v2rayN/Tool/Utils.cs
index 3518455c..f4befda0 100644
--- a/v2rayN/v2rayN/Tool/Utils.cs
+++ b/v2rayN/v2rayN/Tool/Utils.cs
@@ -453,6 +453,12 @@ namespace v2rayN
             }
         }
 
+        public static bool IsBase64String(string plainText)
+        {
+            var buffer = new Span<byte>(new byte[plainText.Length]);
+            return Convert.TryFromBase64String(plainText, buffer, out int _);
+        }
+
         #endregion