IDN .рф domain delegated to Vercel DNS but records are not published

I have an issue with an IDN domain on Vercel DNS. Domain: про-сайты.рф punycode: xn--8sbx1adk.xn--p1ai Project: anastasia-portfolio The domain is added to the project, but Vercel shows “Invalid Configuration”. Registrar: Timeweb Timeweb support confirmed that the domain is correctly delegated to: ns1.vercel-dns.com ns2.vercel-dns.com However, Vercel DNS does not publish the records for this domain. Public DNS checkers do not consistently resolve NS/A/CNAME records. Vercel Agent also detected a possible infrastructure-side issue with this IDN domain and said the DNS engineering team should investigate it, but the support case form is blocked on Hobby plan and redirects me to the Community. Expected result: The domain should be validated and Vercel DNS should publish records for xn--8sbx1adk.xn--p1ai. Please help escalate or explain what exactly blocks validation for this IDN domain.

Additional information.

Vercel Dashboard for this domain still shows:

"Update your domain's nameservers to enable Vercel DNS"

However, WHOIS already shows that the domain is delegated to:

ns1.vercel-dns.com

ns2.vercel-dns.com

DNSChecker for NS records shows only 1--2 successful locations and many failed locations. So the delegation exists in WHOIS, but Vercel Dashboard still does not recognize the nameservers as active.

I am attaching:

a screenshot from Vercel Dashboard showing "Update your domain's nameservers"
a screenshot from DNSChecker showing unstable NS resolution

Please help escalate this issue or explain why Vercel DNS does not recognize the nameservers for this IDN domain.

Could you please clarify what exactly Vercel considers misconfigured?

WHOIS shows the domain is delegated to ns1.vercel-dns.com and ns2.vercel-dns.com, but Vercel Dashboard still says "Update your domain's nameservers to enable Vercel DNS".

Is the issue:

Vercel cannot see the delegation from the .рф registry,
the DNS zone for ߭߷߹߶ߡ.рф is missing/broken on Vercel DNS,
or IDN/punycode validation is failing on Vercel's side?

Please tell me the exact blocking reason, not just "Invalid Configuration".

Пожалуйста, уточните, что именно Vercel считает неправильно настроенным?

WHOIS показывает, что домен делегирован на ns1.vercel-dns.com и ns2.vercel-dns.com, но в панели Vercel всё равно написано: "Update your domain's nameservers to enable Vercel DNS".

Проблема в том, что:

Vercel не видит делегирование из реестра .рф,
DNS-зона для ߭߷߹߶ߡ.рф отсутствует или сломана на стороне Vercel DNS,
или на стороне Vercel не проходит проверка IDN/punycode?

Пожалуйста, скажите точную причину блокировки, а не просто "Invalid Configuration".

Could you please clarify what exactly Vercel considers misconfigured?

WHOIS shows the domain is delegated to ns1.vercel-dns.com and ns2.vercel-dns.com, but Vercel Dashboard still says "Update your domain's nameservers to enable Vercel DNS".

Is the issue:

Vercel cannot see the delegation from the .рф registry,
the DNS zone for ߭߷߹߶ߡ.рф is missing/broken on Vercel DNS,
or IDN/punycode validation is failing on Vercel's side?

Please tell me the exact blocking reason, not just "Invalid Configuration".

Additional information.

Vercel Dashboard for this domain still shows:

"Update your domain's nameservers to enable Vercel DNS"

However, WHOIS already shows that the domain is delegated to:

ns1.vercel-dns.com

ns2.vercel-dns.com

DNSChecker for NS records shows only 1--2 successful locations and many failed locations. So the delegation exists in WHOIS, but Vercel Dashboard still does not recognize the nameservers as active.

I am attaching:

a screenshot from Vercel Dashboard showing "Update your domain's nameservers"
a screenshot from DNSChecker showing unstable NS resolution

Please help escalate this issue or explain why Vercel DNS does not recognize the nameservers for this IDN domain.

Could you please clarify what exactly Vercel considers misconfigured?

WHOIS shows the domain is delegated to ns1.vercel-dns.com and ns2.vercel-dns.com, but Vercel Dashboard still says "Update your domain's nameservers to enable Vercel DNS".

Is the issue:

Vercel cannot see the delegation from the .рф registry,
the DNS zone for ߭߷߹߶ߡ.рф is missing/broken on Vercel DNS,
or IDN/punycode validation is failing on Vercel's side?

Please tell me the exact blocking reason, not just "Invalid Configuration".