Very odd DNS problems after .5 update

[philosoma]

I'm using OPNsense in Proxmox with AdGuard Home. When updating to .5, DNS just no longer works, even if I turn on Unbound and AdGuard off.

I revert back to .4 via Proxmox, all is working again. Update again to test and same thing, no DNS.

Revert, remove AdGuard, start unbound, all is still good. Update to .5 and DNS partially works. Now some sites work, some do not, with no particular  If doing an nslookup from Windows 11, its getting the correct address, but no browser on any device works. I can ping the IP just fine. If I set Windows DNS to say 8.8.8.8, it still only partially works.

I'm not doing anything advanced with DNS at all. Firewall is not blocking. Totally baffled to be honest.