I have this same problem with several taxa. Sometimes I find a hidden filter for term_id and if I remove everything from the URL from ? to the end, I can see the photos. Sometimes if I apply and remove filters, it then works but not always. It seems that when it fails for me, I eventually end up with this troublesome string for several taxa: “term_id=12&term_value_id=14”. Maybe that’s a clue or maybe just me.
I’m using Chrome on MacOS 10.15.7, Catalina.
I tried a test of several taxa using Safari and didn’t have any trouble, but I haven’t been using that browser much recently.