System.NullReferenceException: Object reference not set to an instance of an object.
   at OpenRA.Widgets.Delegates.LobbyDelegate.JoinedServer()
   at System.Action.Invoke()
   at OpenRA.Game.SyncLobbyInfo()
   at OpenRA.Network.UnitOrders.ProcessOrder(OrderManager orderManager, World world, Int32 clientId, Order order)
   at OpenRA.Network.OrderManager.TickImmediate()
   at OpenRA.Game.<Tick>c__AnonStorey57.<>m__15C()
   at OpenRA.Sync.<CheckSyncUnchanged>c__AnonStorey38.<>m__10B()
   at OpenRA.Sync.CheckSyncUnchanged[T](World world, Func`1 fn)
   at OpenRA.Sync.CheckSyncUnchanged(World world, Action fn)
   at OpenRA.Game.Tick(OrderManager orderManager)
   at OpenRA.Game.Tick(OrderManager orderManager, Viewport viewPort)
   at OpenRA.Game.Run()
   at OpenRA.Program.Run(String[] args)
   at OpenRA.Program.Main(String[] args)