Just like the pic shows,it can not use ipv6 address and ddns domain for peer,consider about fix it in next version ,Thanks!
Hello,
This is a known issue. You can set the endpoint (IPv6 address with port) via terminal:
/interface/wireguard/peers
print
set 0 endpoint="[2001:0db8:85a3::8a2e:0370:7334]:12321"