There is still a caption for that figure, perhaps underneath a different figure.

In your Table of Figures Ctrl+Click on the listing for Figure 2 and it should take you to the page. If you cannot see that caption, use the Select Object pane (Home tab) to find and delete it.

Resources in my web page on Complex Documents:

• Insert a Table of Figures
• Moving a Figure and Its Caption
• Table of Figures Problems