diff --git a/v2rayN/ServiceLib/Handler/CoreConfigHandler.cs b/v2rayN/ServiceLib/Handler/CoreConfigHandler.cs
index 432e9319..0db0b9b7 100644
--- a/v2rayN/ServiceLib/Handler/CoreConfigHandler.cs
+++ b/v2rayN/ServiceLib/Handler/CoreConfigHandler.cs
@@ -95,13 +95,13 @@ public static class CoreConfigHandler
     {
         var result = new RetResult();
         var context = await BuildCoreConfigContext(config, new());
-        foreach (var serverTestItem in selecteds.Where(serverTestItem => !serverTestItem.IndexId.IsNullOrEmpty()))
+        var ids = selecteds.Where(serverTestItem => !serverTestItem.IndexId.IsNullOrEmpty())
+            .Select(serverTestItem => serverTestItem.IndexId!)
+            .ToList();
+        foreach (var id in ids)
         {
-            var node = await AppManager.Instance.GetProfileItem(serverTestItem.IndexId!);
-            if (node != null)
-            {
-                await FillNodeContext(context, node, false);
-            }
+            var node = await AppManager.Instance.GetProfileItem(id) ?? new();
+            await FillNodeContext(context, node, false);
         }
         if (coreType == ECoreType.sing_box)
         {
@@ -186,34 +186,37 @@ public static class CoreConfigHandler
             return node;
         }
         context.AllProxiesMap[node.IndexId] = node;
+        var newItems = new List<ProfileItem> { node };
+
         if (node.ConfigType.IsGroupType())
         {
             var groupChildList = await GroupProfileManager.GetAllChildProfileItems(node);
             foreach (var childItem in groupChildList)
             {
                 context.AllProxiesMap[childItem.IndexId] = childItem;
+                newItems.Add(childItem);
             }
         }
 
-        foreach (var profileItemPair in context.AllProxiesMap)
+        foreach (var item in newItems)
         {
-            var address = profileItemPair.Value.Address;
+            var address = item.Address;
             if (Utils.IsDomain(address))
             {
                 context.ProtectDomainList.Add(address);
             }
 
-            if (profileItemPair.Value.EchConfigList.IsNullOrEmpty())
+            if (item.EchConfigList.IsNullOrEmpty())
             {
                 continue;
             }
 
-            var echQuerySni = profileItemPair.Value.Sni;
-            if (profileItemPair.Value.StreamSecurity == Global.StreamSecurity
-                && profileItemPair.Value.EchConfigList?.Contains("://") == true)
+            var echQuerySni = item.Sni;
+            if (item.StreamSecurity == Global.StreamSecurity
+                && item.EchConfigList?.Contains("://") == true)
             {
-                var idx = profileItemPair.Value.EchConfigList.IndexOf('+');
-                echQuerySni = idx > 0 ? profileItemPair.Value.EchConfigList[..idx] : profileItemPair.Value.Sni;
+                var idx = item.EchConfigList.IndexOf('+');
+                echQuerySni = idx > 0 ? item.EchConfigList[..idx] : item.Sni;
             }
             if (!Utils.IsDomain(echQuerySni))
             {
diff --git a/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxDnsService.cs b/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxDnsService.cs
index 00358a85..9db73605 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxDnsService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxDnsService.cs
@@ -349,6 +349,7 @@ public partial class CoreConfigSingboxService
     {
         GenDnsServers();
         _coreConfig.dns ??= new();
+        _coreConfig.dns.rules ??= [];
         _coreConfig.dns.rules.Clear();
         _coreConfig.dns.final = Global.SingboxDirectDNSTag;
         _coreConfig.route.default_domain_resolver = new()
diff --git a/v2rayN/ServiceLib/Services/CoreConfig/V2ray/CoreConfigV2rayService.cs b/v2rayN/ServiceLib/Services/CoreConfig/V2ray/CoreConfigV2rayService.cs
index a74d850a..762f5f4b 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/V2ray/CoreConfigV2rayService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/V2ray/CoreConfigV2rayService.cs
@@ -83,8 +83,8 @@ public partial class CoreConfigV2rayService(CoreConfigContext context)
                 return ret;
             }
 
-            var v2rayConfig = JsonUtils.Deserialize<V2rayConfig>(result);
-            if (v2rayConfig == null)
+            _coreConfig = JsonUtils.Deserialize<V2rayConfig>(result);
+            if (_coreConfig == null)
             {
                 ret.Msg = ResUI.FailedGenDefaultConfiguration;
                 return ret;
@@ -103,9 +103,9 @@ public partial class CoreConfigV2rayService(CoreConfigContext context)
             }
 
             GenLog();
-            v2rayConfig.inbounds.Clear();
-            v2rayConfig.outbounds.Clear();
-            v2rayConfig.routing.rules.Clear();
+            _coreConfig.inbounds.Clear();
+            _coreConfig.outbounds.Clear();
+            _coreConfig.routing.rules.Clear();
 
             var initPort = AppManager.Instance.GetLocalPort(EInboundProtocol.speedtest);
 
@@ -159,13 +159,14 @@ public partial class CoreConfigV2rayService(CoreConfigContext context)
                     protocol = EInboundProtocol.mixed.ToString(),
                 };
                 inbound.tag = inbound.protocol + inbound.port.ToString();
-                v2rayConfig.inbounds.Add(inbound);
+                _coreConfig.inbounds.Add(inbound);
 
                 var tag = Global.ProxyTag + inbound.port.ToString();
                 var isBalancer = false;
                 //outbound
-                var proxyOutbounds = BuildAllProxyOutbounds(tag);
-                v2rayConfig.outbounds.AddRange(proxyOutbounds);
+                var proxyOutbounds =
+                    new CoreConfigV2rayService(context with { Node = item }).BuildAllProxyOutbounds(tag);
+                _coreConfig.outbounds.AddRange(proxyOutbounds);
                 if (proxyOutbounds.Count(n => n.tag.StartsWith(tag)) > 1)
                 {
                     isBalancer = true;
@@ -186,12 +187,12 @@ public partial class CoreConfigV2rayService(CoreConfigContext context)
                     rule.balancerTag = tag;
                     rule.outboundTag = null;
                 }
-                v2rayConfig.routing.rules.Add(rule);
+                _coreConfig.routing.rules.Add(rule);
             }
 
             //ret.Msg =string.Format(ResUI.SuccessfulConfiguration"), node.getSummary());
             ret.Success = true;
-            ret.Data = JsonUtils.Serialize(v2rayConfig);
+            ret.Data = JsonUtils.Serialize(_coreConfig);
             return ret;
         }
         catch (Exception ex)
@@ -228,8 +229,8 @@ public partial class CoreConfigV2rayService(CoreConfigContext context)
                 return ret;
             }
 
-            var v2rayConfig = JsonUtils.Deserialize<V2rayConfig>(result);
-            if (v2rayConfig == null)
+            _coreConfig = JsonUtils.Deserialize<V2rayConfig>(result);
+            if (_coreConfig == null)
             {
                 ret.Msg = ResUI.FailedGenDefaultConfiguration;
                 return ret;
@@ -238,9 +239,9 @@ public partial class CoreConfigV2rayService(CoreConfigContext context)
             GenLog();
             GenOutbounds();
 
-            v2rayConfig.routing.rules.Clear();
-            v2rayConfig.inbounds.Clear();
-            v2rayConfig.inbounds.Add(new()
+            _coreConfig.routing.rules.Clear();
+            _coreConfig.inbounds.Clear();
+            _coreConfig.inbounds.Add(new()
             {
                 tag = $"{EInboundProtocol.socks}{port}",
                 listen = Global.Loopback,
@@ -250,7 +251,7 @@ public partial class CoreConfigV2rayService(CoreConfigContext context)
 
             ret.Msg = string.Format(ResUI.SuccessfulConfiguration, "");
             ret.Success = true;
-            ret.Data = JsonUtils.Serialize(v2rayConfig);
+            ret.Data = JsonUtils.Serialize(_coreConfig);
             return ret;
         }
         catch (Exception ex)