Thanks so much for your response @Dyon (and for the container).
Werid. There was never a . or _ in front of it that was visible in the GUI so I checked midnight commander and it seems there are always duplicate files. One with the one I rename and one with "._<filename>".
Also confirming credentials.conf (along with melbourne.ovpn) is required in the openvpn folder? So just the two files?
As I rename it, it seems to generate a copy with "._" Do you think I should just delete the copy ._ and see how I go?
Thanks again!