Page embedding

Hello…

The dropdown field for embedding the Sticky List on a specific page/post does not show any new additions past 12/12/2017 (screenshot: https://www.dropbox.com/s/p4f209ezbb0k15i/sticky%20list%20-%20embedded%20page.png?dl=0) and this is affecting our ability to use the list as intended (with the proper permissions).

What can I do to force the list to refresh?