Snapshots won't link successfully to Dropbox account

I am trying to connect Snapshots to Dropbox, and am able to get as far as authorizing the connection and linking the app in my Dropbox account. However, when I return to the Add Snapshot Destination page, it asks me for a directory for storage of the snapshots but does not give me an option to save the form. See this screenshot of the page I get after successful linking:

There is nowhere to go from here, so the setup is incomplete. Something is obviously missing here, so can I ask someone to look into it please?