Pfsense Dyn DNS strangeness

I can’t figure out why this would be a thing in a DynDNS client, yet for my IPv6 setup, it seems to be not even bothering trying to check the external IP checking service…

Nov 13 03:33:50 pfsense php-fpm[16222]: /services_dyndns_edit.php: Dynamic DNS pb -v6 (hostname.io): fc00:bbbb:bbbb:bb01::5:1d9a extracted from local system.
Nov 13 03:33:50 pfsense php-fpm[16222]: /services_dyndns_edit.php: phpDynDNS: updating cache file /conf/dyndns_opt5pbn-v6’mv.io’11_v6.cache: fc00:bbbb:bbbb:bb01::5:1d9a
Nov 13 03:33:50 pfsense php-fpm[16222]: /services_dyndns_edit.php: phpDynDNS (mv.den): (Success) IP Address Updated Successfully!

This is baffling to me, as the whole point of a DynDNS service is to check your IP yet its just pulling from “local system” ?? What am I missing here.