Update AssetSystem

Assets/YooAsset/Runtime/AssetSystem/Provider/BundledAssetProvider.cs

@@ -60,6 +60,16 @@ namespace YooAsset
 					return;
 				}
 
+				if (OwnerBundle.CacheBundle == null)
+				{
+					if (OwnerBundle.IsDestroyed)
+						throw new System.Exception("Should never get here !");
+					Status = EStatus.Fail;
+					LastError = $"The bundle {OwnerBundle.MainBundleInfo.BundleName} has been destroyed by unity bugs !";
+					InvokeCompletion();
+					return;
+				}
+
 				Status = EStatus.Loading;
 			}