diff --git a/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxOutboundService.cs b/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxOutboundService.cs
index a1d736d8..2afc4f49 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxOutboundService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxOutboundService.cs
@@ -519,7 +519,7 @@ public partial class CoreConfigSingboxService
         var outUrltest = new Outbound4Sbox
         {
             type = "urltest",
-            tag = $"{Global.ProxyTag}-auto",
+            tag = $"{baseTagName}-auto",
             outbounds = proxyTags,
             interrupt_exist_connections = false,
         };
@@ -533,7 +533,7 @@ public partial class CoreConfigSingboxService
         var outSelector = new Outbound4Sbox
         {
             type = "selector",
-            tag = Global.ProxyTag,
+            tag = baseTagName,
             outbounds = JsonUtils.DeepCopy(proxyTags),
             interrupt_exist_connections = false,
         };
@@ -613,22 +613,30 @@ public partial class CoreConfigSingboxService
                     }
                     else if (chainStartNodes.Count > 1)
                     {
-                        var existedChainNodes = JsonUtils.DeepCopy(resultOutbounds);
+                        var existedChainNodes = CloneOutbounds(resultOutbounds);
                         resultOutbounds.Clear();
+                        var j = 0;
                         foreach (var chainStartNode in chainStartNodes)
                         {
-                            var existedChainNodesClone = JsonUtils.DeepCopy(existedChainNodes);
-                            for (var j = 0; j < existedChainNodesClone.Count; j++)
+                            var existedChainNodesClone = CloneOutbounds(existedChainNodes);
+                            foreach (var existedChainNode in existedChainNodesClone)
                             {
-                                var existedChainNode = existedChainNodesClone[j];
                                 var cloneTag = $"{existedChainNode.tag}-clone-{j + 1}";
                                 existedChainNode.tag = cloneTag;
+                            }
+                            for (var k = 0; k < existedChainNodesClone.Count; k++)
+                            {
+                                var existedChainNode = existedChainNodesClone[k];
                                 var previousDialerProxyTag = existedChainNode.detour;
+                                var nextTag = k + 1 < existedChainNodesClone.Count
+                                    ? existedChainNodesClone[k + 1].tag
+                                    : chainStartNode.tag;
                                 existedChainNode.detour = (previousDialerProxyTag == currentTag)
                                     ? chainStartNode.tag
-                                    : existedChainNodesClone[j + 1].tag;
+                                    : nextTag;
                                 resultOutbounds.Add(existedChainNode);
                             }
+                            j++;
                         }
                     }
                 }
@@ -649,6 +657,33 @@ public partial class CoreConfigSingboxService
         return resultOutbounds;
     }
 
+    private static List<BaseServer4Sbox> CloneOutbounds(List<BaseServer4Sbox> source)
+    {
+        if (source is null || source.Count == 0)
+        {
+            return [];
+        }
+
+        var result = new List<BaseServer4Sbox>(source.Count);
+        foreach (var item in source)
+        {
+            BaseServer4Sbox? clone = null;
+            if (item is Outbound4Sbox outbound)
+            {
+                clone = JsonUtils.DeepCopy(outbound);
+            }
+            else if (item is Endpoints4Sbox endpoint)
+            {
+                clone = JsonUtils.DeepCopy(endpoint);
+            }
+            if (clone is not null)
+            {
+                result.Add(clone);
+            }
+        }
+        return result;
+    }
+
     private static void FillRangeProxy(List<BaseServer4Sbox> servers, SingboxConfig singboxConfig, bool prepend = true)
     {
         try
diff --git a/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs b/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs
index 61efbfaf..3f0ddb7a 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs
@@ -757,21 +757,31 @@ public partial class CoreConfigV2rayService
                     {
                         var existedChainNodes = JsonUtils.DeepCopy(resultOutbounds);
                         resultOutbounds.Clear();
+                        var j = 0;
                         foreach (var chainStartNode in chainStartNodes)
                         {
                             var existedChainNodesClone = JsonUtils.DeepCopy(existedChainNodes);
-                            for (var j = 0; j < existedChainNodesClone.Count; j++)
+                            foreach (var existedChainNode in existedChainNodesClone)
                             {
-                                var existedChainNode = existedChainNodesClone[j];
                                 var cloneTag = $"{existedChainNode.tag}-clone-{j + 1}";
                                 existedChainNode.tag = cloneTag;
+                            }
+                            for (var k = 0; k < existedChainNodesClone.Count; k++)
+                            {
+                                var existedChainNode = existedChainNodesClone[k];
                                 var previousDialerProxyTag = existedChainNode.streamSettings?.sockopt?.dialerProxy;
+                                var nextTag = k + 1 < existedChainNodesClone.Count
+                                    ? existedChainNodesClone[k + 1].tag
+                                    : chainStartNode.tag;
                                 existedChainNode.streamSettings.sockopt = new()
                                 {
-                                    dialerProxy = (previousDialerProxyTag == currentTag) ? chainStartNode.tag : existedChainNodesClone[j + 1].tag
+                                    dialerProxy = (previousDialerProxyTag == currentTag)
+                                        ? chainStartNode.tag
+                                        : nextTag
                                 };
                                 resultOutbounds.Add(existedChainNode);
                             }
+                            j++;
                         }
                     }
                 }