Trial version not displaying embedded variables

I am experimenting with the limits of functionality in a trial version of Qualtrics. I first developed a survey within a paid license. The survey used embedded data and displayed the values at the end of the survey. I have now replicated the survey in within a trial version. The only thing I have changed was the embedded data field names. I wanted shorter names so they are a 4 letter, all CAPS. It seems that the embedded data fields will now not display at the end of the survey. Any suggestions? Thanks