I'm also getting these errors (at least hourly) since the dnsmasq upgrade to v2.80-16.2 last night, running stock 19.07.5 r11257 on Linksys WRT3200ACM:
dnsmasq Ignoring query from non-local network
dnsmasq failed to send packet: Network unreachable
dnsmasq failed to send packet: Address family not supported by protocol
Any advice much appreciated, unless we wait for a patch if this has been acknowledged as a bug and being actively worked on.
Thanks