In edit mode footnote numbers correlate to when they were inserted not where they fall in the order of the text. In Preview mode this doesn't seem to be a problem.
The confusion comes when switching back and forth between the two views. The same footnote ^1 in Preview will show up as ^6 in Edit if the footnote was inserted after the others chronologically.
Preview mode:

Edit mode:

In edit mode footnote numbers correlate to when they were inserted not where they fall in the order of the text. In Preview mode this doesn't seem to be a problem.
The confusion comes when switching back and forth between the two views. The same footnote ^1 in Preview will show up as ^6 in Edit if the footnote was inserted after the others chronologically.
Preview mode:

Edit mode:
