Other subdomains work fine but this seems an issue - it's the first record in this subdomain ?
status:
presented: true
processing: true
reason: 'Waiting for DNS-01 challenge propagation: DNS record for "kiali-canaveral.delta.p10y.ntnxdpro.com"
not yet propagated'
state: pending
It appears that the record was not propagated to ns3.ntnxdpro.com, it might not have been an issue for other subdomains as ns3.ntnxdpro.com doesn't appear in the glue records for ntnxdpro.com and unbound (the DNS resolver used by Let's Encrypt) only updates its list of nameservers after querying a few domains.