Can't connect to VPN via networkmanager

Hi all, I just did a fresh install of endeavouros and I need to setup an open vpn client.
Whe I try to activate the vpn via network manager the toggle return to the deactivated state immediatly.
If i run
sudo openvpn client.ovpn
the vpn connects successfully.
Can anyone help me in diagnosing the problem? I have to add some additional settings to the vpn (dns related) and ding the via network manager is very straight forward.

Thanks a lot,
Giovanni

Maybe this site can help you: https://wiki.archlinux.org/title/Category:Virtual_Private_Network