I go through the process you document and its the same result however now the acme-v02 directory has been created
bash-3.2# ls
acme-v01.api.letsencrypt.org acme-v02.api.letsencrypt.org
permissions are correct
i run a multidomain sh script not cron and the result below :
un 16 Aug 2020 18:12:33 AEST] Getting domain auth token for each domain
[Sun 16 Aug 2020 18:12:33 AEST] Getting webroot for domain=‘domain.com’
[Sun 16 Aug 2020 18:12:33 AEST] Getting new-authz for domain=‘domain.com’
[Sun 16 Aug 2020 18:12:36 AEST] The new-authz request is ok.
[Sun 16 Aug 2020 18:12:36 AEST] new-authz error: {“type”:“urn:acme:error:unauthorized”,“detail”:“Error creating new authz :: Validations for new domains are disabled in the V1 API (End of Life Plan for ACMEv1)”,“status”: 403}
[Sun 16 Aug 2020 18:12:36 AEST] Please add ‘–debug’ or ‘–log’ to check more details.
[Sun 16 Aug 2020 18:12:36 AEST] See: https://github.com/Neilpang/acme.sh/wiki/How-to-debug-acme.sh