If you notice that your fields on your form are "scrambling" from their positions in Preview mode when you turn your form active, we would suggest the following:
1. Within the Form Designer, place a blank Section between the two sections where the fields appear to scramble
2. Place a Notes field in the blank Section field and remove all text
3. Match the blank Section border colors with the colors of the background of the form so that it does not appear visible
In this way, there is a "spacer" between the field sections that cause the issue, which has been proven to correct the problem.
In either case, we strongly recommend contacting Blackbaud Customer Support at 877-704-3343 between Monday and Friday, 8:30am-8:00pm EST or create a case through CaseCentral. Please include the form ID, and sections that are displaying the issue.