Service Bus Relay Forwarding Empty Data Contract to WCF Service

I have a WCF Service that works on premises hosted in a console app using NetTcpBinding. When I converted the project to use Azure Service Bus the WCF Service is presented with the proper object but all properties are null.

My on premises WCF client requires no explicit serialization but is there something I need to do to manually serialize it for the Service Bus (using a NetTcpRelayBinding)?

The two services are identical just the bindings are different. I have no errors surfacing in either project.

Thanks

J Donnelly