Seems you are affected by WARNING: Raspbian October 2021 release bullseye + unbound.
For a fix, see e.g. Pihole + Unbound not working as it should - #12 by jfb.
Seems you are affected by WARNING: Raspbian October 2021 release bullseye + unbound.
For a fix, see e.g. Pihole + Unbound not working as it should - #12 by jfb.