Dear Maintainer, with GNOME 42 it's not possible to edit/add new VPN connection anymore. 'Error: unable to load VPN connection editor'
This is because GNOME Control Center was moved to GTK 4. Upstream have added GTK 4 support with 1.4.0. Please consider updating the package, otherwise network-manager-fortisslvpn-gnome is not much usable in Debian anymore. -- Best regards, Andrey Skvortsov
