Preview report for feature

Preview report for feature

I may be wrong, but I thought when creating feature reports it would show the nominal value in the preview pop-up box? I typically measure all of my features and add my reporting steps at the end of the program. Lately, as I add the reporting features, the nominal values are always zero in the preview box. I currently have to re-run the program from the first reporting step to populate the values. Not a huge deal, but maybe there is a setting that somehow got changed by mistake? 
Any help is appreciated. Thanks in advance.