The "DNS Proxy" feature for custom DoH (DNS-over-HTTPS) and DoT (DNS-over-TLS) servers doesn't work properly, making it impossible to use third-party encrypted DNS services like NextDNS on IPv6. When I use only IPv4, DoH works perfectly as expected, but when I enable IPv6, it simply doesn't work.

I'd like to know if this is a bug or if the ER605 simply doesn't support DoH on IPv6. I'll leave a screenshot of the configuration.