SSL_CTX_set_default_verify_paths failed

[William Gibson]

Environment:-

Mint 21
MySQL Server Version 8.0.30-0ubuntu0.22.04.2

/var/lib/mysql/new_certs/ folder contains:-
ca.pem
ca-key.pem
server-cert.pem
server-key.pem
all have permssions -rw------
Owner 'MySQL Server'

Log reports immediately following startup:-
Failed to set up SSL because of the following SSL library error: SSL_CTX_set_default_verify_paths failed

/etc/mysql/mysqlconf.d/mysqld.cnf folder contains:-

ssl_ca=/var/lib/mysql/new_certs/ca.pem
ssl_cert=/var/lib/mysql/new_certs/server-cert.pem
ssl_key=/var/lib/mysql/new_certs/server-key.pem

I have tried all the recommended fixes I have found (but understood) but the problem is persistent.

Certificates were created using the article "Guide to MySQL Encryption" by Usama Azad and verified using openssl.

I can successfully reach a test database but not over SSL.

This is a new install.

Looking for guidance or fix.

Thanks for reading.