SSL Generator producing 0kb cert dating 01/01/70

CentOS Linux release 7.4.1708 (Core)
Apache/2.4.29
PHP 5.6.30
CWPpro version: 0.9.8.415
CWP SELinux enabled

happens on Manual/Auto SSL and key sizes 2048/4096.

Certificate Manager reporting subsequently

Invalid certificate/key pair
SSLCertificateFile (file not exists) /etc/pki/tls/certs/domain.example.cert

Apache server fails to start subsequently

SSLCertificateFile: file '/etc/pki/tls/certs/domain.example.cert' does not exist or is empty

still happening with CWPpro 0.9.8.429