A family of Microsoft word processing software products for creating web, email, and print documents.
The first step is to try and figure out what is causing the additional spacing. Click the ¶ icon on the Home tab to reveal nonprinting characters. Take a new screen shot and upload it so that we can have a closer look.
The footnote separator may have acquired an extra paragraph mark, ¶, or maybe formatting such as Line Spacing or Spacing Before/After has been applied to the separator.
To investigate the separator in detail, you need to switch to Draft view and open the separator in a separate pane. See the screen shot below. Post back if you need further assistance.