New Error

2015-08-03 13:02:54.112 - Thread: 1 -> Status: Exists(True) InScene(False)
2015-08-03 13:02:55.583 - Thread: 1 -> CreateCompressedMsg received
2015-08-03 13:02:55.585 - Thread: 1 -> CreateCompressedMsg: Byte[] EntityID: 276B8BEBED31AE2
2015-08-03 13:02:55.600 - Thread: 1 -> Status: Exists(True) InScene(True)
2015-08-03 13:02:55.610 - Thread: 1 -> Exception occured: System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
at Sandbox.Game.Multiplayer.MySyncCharacter.OnAttachToCockpit(MySyncCharacter sync, AttachToCockpitMsg& msg, MyNetworkClient sender)
at Sandbox.Game.Multiplayer.MySyncLayer.MyCallbackEntity`2.Handle(TMsg& msg, MyNetworkClient player, TimeSpan timestamp)
at Sandbox.Game.Multiplayer.MySyncLayer.MyCallbackBase`1.OnHandle(TMsg& msg, MyNetworkClient player, TimeSpan timestamp)
at Sandbox.Game.Multiplayer.MySyncLayer.MyCallbackBase`1.Handle(TMsg& msg, UInt64 sender, TimeSpan timestamp)
at Sandbox.Game.Multiplayer.MySyncLayer.MyCallbackBase`1.Sandbox.Engine.Multiplayer.ITransportCallback.Receive(ByteStream source, UInt64 sender, TimeSpan timestamp)
at Sandbox.Engine.Multiplayer.MyTransportLayer.HandleMessage(Byte[] data, Int32 dataSize, UInt64 sender, TimeSpan timestamp)
at Sandbox.Engine.Networking.MyReceiveQueue.ProcessMessages(NetworkMessageDelegate handler, TimeSpan delay)
at Sandbox.Engine.Networking.MyReceiveQueue.Process(NetworkMessageDelegate handler, TimeSpan delay)
at Sandbox.Engine.Networking.MyNetworkReader.Process(TimeSpan lag)
at Sandbox.MySandboxGame.Update()
at Sandbox.Engine.Platform.Game.UpdateInternal()
at Sandbox.Engine.Platform.FixedRenderLoop.<>c__DisplayClass2.<Run>b__1()
at Sandbox.Engine.Platform.GenericRenderLoop.Run(VoidAction tickCallback)
at Sandbox.MySandboxGame.Run(Boolean customRenderLoop, Action disposeSplashScreen)
at SpaceEngineers.MyProgram.RunInternal(String[] args)
at SpaceEngineers.MyProgram.Main(String[] args)
2015-08-03 13:02:55.610 - Thread: 1 -> Hiding window
2015-08-03 13:02:55.857 - Thread: 1 -> Network readers disposed
2015-08-03 13:02:56.733 - Thread: 1 -> Hiding window done
2015-08-03 13:02:56.733 - Thread: 1 -> Showing message