we are unable to get new certificates for all subdomains of flangaapis.com, except for flangaapis.com - we have set appropriate CAA records for letsencrypt.org, however all validations fail:
We use PowerDNS 4.1.0 - the validation works for other domains hosted on the same nameserver with the same records - DNSSEC is green and the validation works for flangaapis.com