diff --git a/Assets/PerfectWorld/Scripts/World/LitModelHolder.cs b/Assets/PerfectWorld/Scripts/World/LitModelHolder.cs
index 36e5ac4805..4c9ef13186 100644
--- a/Assets/PerfectWorld/Scripts/World/LitModelHolder.cs
+++ b/Assets/PerfectWorld/Scripts/World/LitModelHolder.cs
@@ -299,6 +299,13 @@ public class LitModelHolder : MonoSingleton<LitModelHolder>
     {
         _currentIdxAsset = 0;
         _maxIdxAsset = _candidatesForLoading.Count;
+
+        // double check if we really need to load and unload objects.
+        if (_maxIdxAsset <= 0)
+        {
+            CallBackAssetLoadingDone();
+            return;
+        }
         // load the objects that are in the loading range long enough. (_candidateWaitTimeSeconds)
         foreach (var kvp in _candidatesForLoading)
         {