BazRat24 wrote
Our X509 name is 247 characters long and can't be changed
Because --verify-x509-name has
never worked for your name you may
have to change it ..
It does appear to be a coded limitation and your X.509 name is beyond the length that openvpn will allow.
(although, that could be a constraint applied by openssl)
I suggest you direct your question to the Openvpn developers (on the usual channels)