When you try to renew certificates with a different account than the one used to generate them the certbot-auto script (v0.27.1) returns that the account does not exist:
*/usr/bin/certbot-auto renew --force-renew --no-self-upgrade
Account at /etc/letsencrypt/accounts/acme-v01.api.letsencrypt.org/directory/8073d8b1411a09172a8a57d91683d524 does not exist. Skipping.*
Would it be possible to renew certificates with a new acme account?
Not regenerate the certificates, really renew the existing certificates.