No Local DNS Resolve When WAN Goes Down

[majorsl]

I'm unsure if this is a bug or a configuration problem I have. My WAN went down yesterday and I discovered that all local DNS resolves also broke unless I bypassed AdGuard and set my clients to my local DNS Server. Here's my setup:

I have Unbound DNS on my LAN primarily for local DNS resolving of clients/services on my LAN. I would like https DNS for public lookups (which I can't do with Unbound on my Firewall) so in my Upstream Servers I have:

https://dns.google/dns-query
https://doh.libredns.gr/dns-query
https://dns-unfiltered.adguard.com/dns-query

I thought if I put my two domains in that list as:

[/mydomain1.com/]10.0.1.1
[/mydomain2.com/]10.0.1.1

it should resolve using my local Unbound DNS. I think I was wrong.

How would I accomplish what I'm looking to do?