2018-03-18 5:58:14 PM: Critical error occurred
System.NullReferenceException: Object reference not set to an instance of an object.
   at Vintagestory.API.Common.CraftingRecipeIngredient.Clone()
   at Vintagestory.API.Common.GridRecipe.ConsumeInputShapeLess(IWorldAccessor world, IPlayer byPlayer, IItemSlot[] inputSlots)
   at _pU4W8AID8egAOqbOUSPWtLjlpoG._LyXzQdaVvzSo0F2bEpfxsaRsrPm()
   at _dPnVZxuzVo9zTepb8bQLbovABOD._mf5mBYp5Dc4L94ExFtpJPxx6U0i(IItemSlot , ItemStackMoveOperation& )
   at Vintagestory.API.Common.ItemSlotOutput.ActivateSlot(ItemSlot sourceSlot, ItemStackMoveOperation& op)
   at Vintagestory.API.Common.InventoryBase.ActivateSlot(Int32 slotId, IItemSlot sourceSlot, ItemStackMoveOperation& op)
   at _eIXvGyY93zPWhP6CvNwVVgvbawO._Lu1gJgMzkjJ82msCEBOXlJe9ASk(_ir11PTuRpE1aeYwMlNioYG2kBeX , Int32 , EnumMouseButton , Boolean , Boolean , Boolean )
   at _eIXvGyY93zPWhP6CvNwVVgvbawO._6qKqgzRf8BXOrGYOovwNRG9Z7aG(_ir11PTuRpE1aeYwMlNioYG2kBeX , MouseEvent )
   at _Vrnv6thBPy1954jaoG6PSwrR0NG._CJ72SVkxJwxCA1frA5OqhOsLkpe(_ir11PTuRpE1aeYwMlNioYG2kBeX , MouseEvent )
   at _Z0rMF0Dnl5mhZmH0nXamPE2thwD._CJ72SVkxJwxCA1frA5OqhOsLkpe(_ir11PTuRpE1aeYwMlNioYG2kBeX , MouseEvent )
   at _KMLWua1Zvn3hcr6cvXfFfHq5MYB._CJ72SVkxJwxCA1frA5OqhOsLkpe(MouseEvent )
   at _MrQsu2GuJMLQvRd30L2qnPMhJoh._CJ72SVkxJwxCA1frA5OqhOsLkpe(MouseEvent )
   at _1Xag6se2FILA9eGXXRFFOHwGBcb._CJ72SVkxJwxCA1frA5OqhOsLkpe(MouseEvent )
   at _lpa2wezMUmPC9SYeqyldCPi5ykI._mJvNcPMAIwehIVIWxp5tJn5z6cd(Object , MouseButtonEventArgs )
   at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
   at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
   at OpenTK.Platform.Windows.WinGLNative.WindowProcedure(IntPtr handle, WindowMessage message, IntPtr wParam, IntPtr lParam)
   at OpenTK.Platform.Windows.Functions.DispatchMessage(MSG& msg)
   at OpenTK.Platform.Windows.WinGLNative.ProcessEvents()
   at OpenTK.GameWindow.Run(Double updates_per_second, Double frames_per_second)
   at _Tv2OyERsF5nbcsgRKs9eUwKhqvQ._PKov0Of2By4G8K7ADCC7QTQGmRJ(_mkP9VlL7dCVktBhZ5FljAa2Dtjn , String[] )
   at _KvvPcWG9QIDQlkC88RkzBikZZNB._PKov0Of2By4G8K7ADCC7QTQGmRJ(ThreadStart )
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