Enable DHCP client in DNS - IPv6 addresses not included?

HI, I can not achieve to have IPv6 addresses in local DNS , IPv4 works well.
I see assigned DHCPv6 leases in Luci with global unicast and unique local address:
image
When I use ping6 FQDN it works
Ping6 to unique local IP works
I can ping hostname in .lan by but ping6 is not working with hostname.
Should this work when I have Enabled DHCP client in DNS in Foris?

Thanks
Karel

IIRC IPv6 is not (yet) implemented in the glue script between DHCP and DNS. @paja will probably remember.

Thank you for information

Confirmed here: Resolv.conf entries parsing to which settings in the unbound daemon?