I had a scenario today where I spent forever trying to figure out why PDP wasn't working properly on a specific dataset. The data looked perfect in the data tab and the PDP rules matched so I was a bit stumped. I even copied/pasted a few rows from the data tab to a text editor, and it looked great. It wasn't until I exported the data to a CSV that I realized there was one column in the data that had a carriage return at the end of the values in that column of data. That in turn prevented PDP from evaluating the values properly.
It would be useful if the data tab had a way to show leading/trailing whitespaces/invisible characters like carriage returns so that it's easy to visual identify.
