DEALER to ROUTER - Router Socket Dropping Every Other Message

[yDivide]

Environment

NetMQ Version: 4.0.0.197-pre
Operating System: Windows 10
.NET Version: .NET Core 2.1

Expected behaviour

Router receives and handles all multi-part messages sent by dealer

Actual behaviour

Router receives first, third, fifth, and so on multi-part messages from dealer. Even messages are not being received and cannot be traced.

Steps to reproduce the behaviour

Dealer sending message:

string serverAddress = string.Format("tcp://{0}:{1}", serverIpAddress, routerPort);
dealerSocket = new DealerSocket(serverAddress);
dealerSocket.Options.Identity = Encoding.Unicode.GetBytes(username);
dealerSocket.Connect(serverAddress);
dealerSocket.ReceiveReady += Client_ReceiveReady;

poller = new NetMQPoller { dealerSocket };
poller.RunAsync();

var data = serializer.Serialize(message);
dealerSocket.SendMoreFrameEmpty().SendFrame(data);

Router receiving message:

routerSocket.ReceiveReady += ListenForMessages;
            poller = new NetMQPoller() { routerSocket };
            poller.RunAsync();

Listen for mesages from router:

try
            {
                bool hasMore;
                var usernameString = a.Socket.ReceiveFrameBytes(out hasMore);

                if (hasMore)
                {
                    var receivedBuffer = a.Socket.ReceiveFrameBytes(out hasMore);
                    if (hasMore) receivedBuffer = a.Socket.ReceiveFrameBytes(out hasMore);

                    if (!hasMore && receivedBuffer != null && receivedBuffer.Length > 0)
                        incomingMessageQueue.Enqueue(receivedBuffer);
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("Exception caught in ROUTER message puller: {0}", ex.Message);
            }

[stale[bot]]

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