Unit 9 - Tell a Data Story Project

When students try to create a crosstab to visualize data in certain tables, the visualizer tool crashes. Is this a problem with the tool or are students trying to visualize data incorrectly?

I did the crosstab about a week ago and it worked fine. It may have to do with a specific dataset. Let me know what specific dataset is being used and what columns are being selected so I can try it out.