Update : The error (60) is only happening during the curltester.php for the following endpoints:

- PayPal Express/Pro Server
- PayPal Payflowpro Server
- AuthorizeNet Production Server

The rest of the endpoints, GOOD.

Below each of the fails for the above endpoints:

Code:
Testing again with less security...
GOOD: CURL Connection successful. (but without being able to verify certificate chain. Again: this is a server issue, not a Zen Cart issue.)
It is seeing the cacert.pem, but apparently something is going wrong between the CA's listed in the cacert.pem and the ones the above endpoints are using?