[Support System] Shortcode for index of tickets is not displaying tickets on the frontend.

The short code for displaying an index of support tickets (e.g., [support-system-tickets-index]) is not displaying any tickets. It only displays the actual number "3", representing the number of dummy support tickets I've created -- doesn't actually display the individual ticket subjects or other information. Is this default behavior on the frontend, or is something amiss? Everything seems fine on the backend.
It's a multisite setup. I've tried changing the site id, as well as the theme used, with no change in the outcome. Any ideas?