[Koha] Branch library list empty

[David Liddle]

Greetings, all! It was reported to me over the weekend that the page ../cgi-bin/koha/admin/branches.pl appears empty. Evidence on other pages suggests that the configured libraries exist, but they are not listed on this page as they should be. Could someone point me in the right direction towards solving this? (Naturally, I am happy to provide additional information if necessary.) Thank you!

Host server: Debian 10
Koha version: 20.11.10