**Steps to reproduce:**
* Install OpenVPN plugin for NetworkManager (`sudo apt install network-manager-openvpn-gnome`)
* Download an OVPN file
* Open the Network tool
* Click the "+" button
* Select "Import from file..."
* Navigate to OVPN file, select it and click "Open" (an "Add VPN" window will appear)
* Fill in VPN credentials:
* Type (Automatic: "Password with certificates")
* User name
* Password
* Certificates and key (Automatic: files imported from OVPN file)
* Do not fill in "User key password" (not required)
* Click "Add"
* Activate VPN connection 1: Activate from GNOME desktop
* Activate VPN connection 2: Activate with nmcli: `sudo nmcli connection up CONNECTION_NAME`
* Activate VPN connection 3: Activate with openvpn: `sudo openvpn --config FILENAME.ovpn`
**What should happen:**
* VPN connection succeeds all three times.
**What happens instead:**
* Activate VPN connection 1: Immediately fails. No error message.
* Activate VPN connection 2: Fails with "Error: Connection activation failed: Unknown reason"
* Activate VPN connection 3: Succeeds. (correct)
**Notes:**
* Since the OpenVPN connection succeeds, we know there isn't a problem with the OVPN file.
* `nmcli --version` returns `nmcli tool, version 1.10.2` on my up-to-date PureOS installation.
**Installed packages:**
* libc6: 2.26-4
* libglib2.0-0: 2.54.3-2
* libglib2.0-data: 2.54.3-2
* libgtk-3-0: 3.22.26-2
* libnm0: 1.10.2-4
* libnma0: 1.8.10-2
* libsecret-1-0: 0.18.5-5
* libsecret-common: 0.18.5-5
* network-manager: 1.10.2-4
* network-manager-openvpn: 1.8.0-2
* network-manager-openvpn-gnome: 1.8.0-2
* openvpn: 2.4.4-2