[HOWTO] OSMC/Rasp Pi as OpenVPN client

Hey guys (& gals?!),
So following years of faithful service using the method described above, the Brian Hornsby OpenVPN add-on seems to have been ‘broken’ by the latest December update. Now when I start the add-on and pick a server/config I get the message that “An error has occurred when trying to connect OpenVPN. Unable to connect to OpenVPN management interface”, click OK and the add-on closes without starting a connection.
Can anyone offer any advice on how to get it up and running again?
Is there a different way to have the VPN auto-connect on start-up and still retain the ability to choose/switch VPN connections?
Any advice or links gratefully received. I have done some searching but am rather baffled by the various complicated methods I’ve been reading.

I’ve posted over in this thread too, where people are discussing a fix for this.
https://discourse.osmc.tv/t/brian-hornsbys-openvpn-script-doesnt-work-after-stretch-update/69740/11

OK the solution was provided to me over in the other thread. Thanks!