This is not the case. Can you share the information that led you to this conclusion, so I can correct the source?
I was misinformed by another user on IRC. I linked them to this thread.
you are trying to issue for ‘sts.adamwilliams.host’
Just checked the CSR and you’re absolutely right.
Many thanks, you hit the nail on the head with the quotes. To further expand, it was an issue with a script designed for generating certs/CSRs/DH params etc needed for an IRCd. I think I’d have been better off doing all the OpenSSL stuff at the command line manually because this is not the first issue with said script. I thought it’d save some time, though.
The actual ACME client was ZeroSSL’s web application (I only wanted one short-lived testing cert) which did things properly as far as I can see.