Odd Upstream Usage with Two AGH's on network

[utahwithak]

I have two instances of AdGuardHome on my network one on a raspberrypi and one running on a linux mint box.

Both are configured identically. Same settings, same upstreams (Cloudflare), same versions, same everything.

What I'm seeing though is that even with those upstreams these two instances are hitting each other up as upstreams.

upstream setting

upstream stats

I'd like to understand why they're using each other for DNS. I was not expecting that and don't know why or how they could be picking it up.

The network is configured to use one as primary and one as secondary, but as far as I understood it those settings shouldn't be used for the Adguard Home instance, they use the upstream setting.

Does anyone know why this is happening? I've looked around quite a bit to try and find if I misconfigured things but results are lacking.