1) Its working! Changes are saving properly to both configs - server and client.
2) I found a glitch - but it's not releated to this update (happened to me before also). Sometimes it happens, that service is not started/restarted properly after SAVE/APPLY. So it's still running with old config loaded - checked through PID (or not started at all). When I do /etc/init.d/openvpn restart manually (logged on as root), it restarts just fine.
3) new MAJOR version 2.5.0 of OpenVPN released (28.10.2020) https://openvpn.net/community-downloads/ . What version are you using on server? If "you" upgrade to 2.5.0, we can use stronger and recommended cipher (I can do some non-dynamic changes in server/client config files if you send me latest source files)
4) have some warnings on client side (I'm using version 2.5.0) so I can tweak configs little (static settings again)...but it's just warnings
Are you still interested to these changes? Probably last changes and it can go "to production". (after testing OFC)