JSON not displaying in RAW request view

Hi,

I have a POST request with JSON body that contains variables. I was always able to verify that these parameters take proper values by clicking on "Raw" tab to view the request as it went or will be sent to the server.

Today I found that I no longer see this and only see the headers, while my co-worker runs the same version of SoapUI (5.2.1) and he does see the raw request.

What could be the problem and how can I troubleshoot this?

Thanks,

Alex