Why is a missing field on the PDF document generated from submissions?

I've setup integration with Google Drive and the folders and files are being created as expected; however, I noticed that data from one of the questions/answers is completely missing. It is on the submission stored on the JotForm server but not the Google Drive. What would have caused this?

I created a PDF from the Jotform submission list and the question is also missing when that file generated.

I would recommend you to reset your PDF report by going to the submissions page of your form, clicking on the PDF button and the customize PDF option:

Once on the PDF editor click on the reset button: 

Try downloading your PDF report again and see if that helps, this will also affect the document sent to your Google Drive folder. 

If the problem persists, please let us know which form you're referring to as well as the field so we can further check this on our end. 

Thank you for the response.  Your response below is based on the old PDF
Editor.  My form was set to the New PDF editor when this error
occurred.  I set the form back to the Old PDF editor and the problem
seems to have gone away.
So, I assume that your new PDF editor is having issues creating
documents. How do I "reset" the form if using the new PDF Editor?
...

Please note that in new PDF editor, you can always add a new PDF document by clicking on  the "+ New PDF " tab.  Please check the screenshot below: