I had to do a factory reset of my router due to BTRFS (why are we using an experimental fs?) and after jumping through the cert issues I was disappointed to find out that my openvpn settings were not stored. 
Should this work? If I had manually edited files that would be one thing. But I’ve done everything through this WebUI.
Unfortunately the OpenVPN certificates are not included by default in the configuration backup.
There is a procedure how to include them.
See following thread for more details:
Thanks, That link does help. I’ve updated my backups config to include that dir now. I also learned I can make a snapshot to a flash drive and restore the whole thing in the future.