SSL certificate not provisioning for IDN (Korean) custom domain after 24+ hours

Hi, I need help with SSL certificate provisioning.

Site name: quiet-phoenix-106ab1
Custom domain: 강남하퍼하이퍼블릭.com
(Korean IDN domain, registered at Gabia)

DNS: Netlify DNS (nameservers dns1-4.p06.nsone.net set at registrar)

Current status:

  • Netlify shows “DNS verification was successful”
  • No certificate has been provisioned after more than 24 hours
  • Browser shows ERR_CERT_COMMON_NAME_INVALID
  • Google Search Console fails to crawl with “invalid server SSL certificate”

What I have already checked:

  • Nameservers are correct and fully propagated (verified all green on DNSChecker.org, NS lookup)
  • No DNSSEC enabled at registrar
  • No CAA records
  • No AAAA records
  • I clicked “Verify DNS configuration” several times

Could this be related to the domain being an IDN (punycode)?
Any help would be appreciated. Thank you.