--- Client/Assets/Scripts/Services/AggUserService.cs (reviewed baseline)

+++ Client/Assets/Scripts/Services/AggUserService.cs

@@ -56,6 +56,15 @@

 
         public override async Task<ELoginStep> Login(Action<int> progress, bool tryLoginByToken = true)
         {
+#if UNITY_EDITOR && !SERVICE_HOST
+            if(game.PlayerDataStorage.PlayerKVGameplayLoop.Enabled)
+            {
+                CustomId=game.PlayerDataStorage.PlayerKVGameplayLoop.Permit.PlayerId;
+                OnInitData+=InitData;
+                try { return await LoginWithBackend(progress,"kv-loop"); }
+                finally { OnInitData-=InitData; }
+            }
+#endif
             var backend=CaptureSaveBackend();
             if(RejectSaveBackend(backend)) return ELoginStep.Api;
             var generation = logoutGeneration;
@@ -224,6 +233,10 @@

         }
         private void InitData(IDictionary<string, string> data)
         {
+#if UNITY_EDITOR && !SERVICE_HOST
+            // Editor loop has no channel SDK login. M31 already replaced account URLs and linked flags.
+            if(PlayerDataStorage.PlayerKVGameplayLoop.Enabled) return;
+#endif
             if (data.TryGetValue(EAccoutType.hwGoogle.ToString(), out var google) && google == "1")
             {
                 TYSdkFacade.TYAccountInfo.linkedAccout.Add(EAccoutType.hwGoogle);