Interesting - I run a nearly identical set, with many TLDs configured in `/etc/resolver/X` and dnsmasq handling the resolve and I have not had a single issue.

the resolver confs all contain this content:

    # /etc/resolver/example-private
    nameserver: 127.0.0.1
    domain example-private

I noticed in the author's bug report they do not include `domain`, which is documented in `man 5 resolver` as:

    # The domain directive is only necessary, if your local
    # router advertises something like localdomain and you have
    # set up your hostnames via an external domain.

In the real world though, I've found the `domain` setting to be required nearly every time. I wonder if adding it will resolve the issue?