Add Loadport loaded check while manual transfer wafer.

Venus/Venus_RT/Modules/ManualTransfer.cs

@@ -71,6 +71,12 @@ namespace Venus_RT.Modules
 
             _wafer_id = WaferManager.Instance.GetWafer(_move_item.SourceModule, _move_item.SourceSlot).InnerId;
 
+            if (ModuleHelper.IsLoadPort(_move_item.DestinationModule) && !Singleton<TransferModule>.Instance.GetScheduler(_move_item.DestinationModule).IsAvailable)
+            {
+                LOG.Write(eEvent.ERR_ROUTER, _move_item.DestinationModule, $"The destination Loadport {_move_item.DestinationModule} is not ready for move wafer.");
+                return RState.Failed;
+            }
+
             if (!CheckSingleArmOption(_move_item.DestinationModule, _move_item.DestinationSlot))
                 return RState.Failed;