Load UI not working properly with mockresponse test step

I am trying to test asynchronous SOAP web services. I have added a test case in SOAPUI with the service request(step 1) and a mock response(step 2) which receives the asynchronous response. After receiving the response(request for MOCK) I have few assertions which i validate one value against the service request value. This works fine in SOAPUI.

I have randomized the port for mockresponse so that load test doesn't break. Still load test is not giving correct results. It is sending all the service requests(step 1) but doesn't wait for mock step(step 2) to complete.

I could see after test completion multiple mocks are running on different ports but my LOADUI report said all completed 0 failed. It would be great help if someone suggests how to load test such scenarios.

Thanks in advance.