ServiceBusClientWebSocket was expecting more bytes

I am getting the error "ServiceBusClientWebSocket was expecting more bytes" when trying to receive a message via the Azure Service Bus Relay service via WCF over a netTcp relay.  I request makes it to the listener and the listener sends a response, but the sender gets the error.  The response could be more that 64KB long. I set the WCF binding on the listener and sending to maxBufferPoolSize="1000000000" maxBufferSize="100000000" maxReceivedMessageSize="100000000". 

Can the WCF relay service allow responses > 64KB?  Do I need to use a HybridConnection?