Which IPv6 to set for my nameservers? ("No AAAA records for any NS")

Hello,
my domain.com is using nameservers of my otherdomain.com
ns1.otherdomain.com
ns2.otherdomain.com

and https://ip6.nl/#domain.com complained that:

DNS servers IPv6: No AAAA records for any NS
IPv6-only DNS: Doesn't work

after i have setup new ns1 and ns2 AAAA records to the possibly Cloudflare dns IPv6:
2606:4700:4700::1001
2606:4700:4700::1111

It started showing these on ip6.nl yet it still says IPv6-only DNS does not work. domain.com hosting server provider says they...

Which IPv6 to set for my nameservers? ("No AAAA records for any NS")