Thanks Lauren,
I took a look and here’s what appears to be happening. The Featured Page widget is made to show the featured image of the page as well as the title of the widget both of which will link back.
The widget is dependent on the page having a featured image. The image gives the widget it’s height and width so without a featured image, there won’t be anything visible on the front end of the site.
The only caveat there is whatever page is set to be the “posts” page will ignore the featured image. I don’t know why WordPress does that, but it does. So it’s really not possible to make a link to the blog using the featured page widget in Agency.
What you could do though is use a plugin like Image Widget to add in an image and link straight to your front page.
If you have any questions or trouble, let me know,
Bill