On workflow 9.0.3, I am trying to update an existing workflow that uses the Retrieve from PDF activity. The PDF form has been updated to include two additional fields that I would like to incorporate into workflow. The problem is that when I replace the current form with the updated form, workflow shows the new fields but does not add them. It also does not recognize the field name for those particular fields. I was wondering what may be the cause for this. This PDF form is used in multiple workflows.