I've done the usual stuff to get a new subdomain of a domain name working.
Created the directory and subdirectories /config/dns with the admin.admin permissions, and the [subdomain].[domain].txt file with the relevant entries in (copied and then modified from another working file)
Ran the upload in /root/BytemarkDNS
Normally things pop up within the hour but it's been over 5 hours now and nothing. Have also checked with one of the online site checkers so I know it's not just my ISP being slow.
It's the first subdomain I've tried to add on the account since I transitioned from a legacy VM to BigV. Any ideas as I don't know what else to try.
Edit: None of my files have any IPv6 references in, just IPv4, so I wonder if this makes any difference for not-already-established domains?