SUMMARY
Since plasma-nm 5.23 I'm unable to connecto to a OpenVPN server with a passphrase secured .p12 certificate. It does works with plain openvpn client on console and also with nmcli but not with plasma-nm. The passphrase is being asked before connection, and it breaks right afterwards.

Passphrase less certificates does also works.


OBSERVED RESULT
OpenVPN connection fails

EXPECTED RESULT
OpenVPN connection is being established

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Archlinux
(available in About System)
KDE Plasma Version: 5.23.2
KDE Frameworks Version: 5.87.0
Qt Version: 5.12.2

ADDITIONAL INFORMATION
Logs: 
Nov 03 15:19:57 alaska systemsettings5[55688]: QDBusObjectPath: invalid path ""
Nov 03 15:19:57 alaska audit[707]: USYS_CONFIG pid=707 uid=0 auid=4294967295 ses=4294967295 msg='op=connection-activate uuid=f0e6c827-300c-4595-9513-a49d3d2c9d5d name="INJKatALASKA-TO-IPFire" pid=55688 uid=1000 result=success exe="/usr/bin/NetworkManager" hostname=? addr=? terminal=? res=success'
Nov 03 15:19:57 alaska NetworkManager[707]: <info>  [1635949197.9503] audit: op="connection-activate" uuid="f0e6c827-300c-4595-9513-a49d3d2c9d5d" name="INJKatALASKA-TO-IPFire" pid=55688 uid=1000 result="success"
Nov 03 15:19:57 alaska kernel: audit: type=1111 audit(1635949197.947:5345): pid=707 uid=0 auid=4294967295 ses=4294967295 msg='op=connection-activate uuid=f0e6c827-300c-4595-9513-a49d3d2c9d5d name="INJKatALASKA-TO-IPFire" pid=55688 uid=1000 result=success exe="/usr/bin/NetworkManager" hostname=? addr=? terminal=? res=success'
Nov 03 15:19:57 alaska NetworkManager[707]: <info>  [1635949197.9544] vpn-connection[0x55a570ad2790,f0e6c827-300c-4595-9513-a49d3d2c9d5d,"INJKatALASKA-TO-IPFire",0]: Started the VPN service, PID 63377
Nov 03 15:19:57 alaska NetworkManager[707]: <info>  [1635949197.9628] vpn-connection[0x55a570ad2790,f0e6c827-300c-4595-9513-a49d3d2c9d5d,"INJKatALASKA-TO-IPFire",0]: Saw the service appear; activating connection
Nov 03 15:19:57 alaska kded5[3913]: plasma-nm: Unhandled VPN connection state change:  2
Nov 03 15:19:57 alaska DiscoverNotifier[4204]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/2«"
Nov 03 15:19:57 alaska kdeconnectd[4193]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/2«"
Nov 03 15:19:57 alaska kded5[3913]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/2«"
Nov 03 15:19:57 alaska kdeconnectd[4193]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/1«"
Nov 03 15:19:57 alaska DiscoverNotifier[4204]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/1«"
Nov 03 15:19:57 alaska kded5[3913]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/1«"
Nov 03 15:19:57 alaska kded5[3913]: plasma-nm: virtual NMVariantMapMap SecretAgent::GetSecrets(const NMVariantMapMap&, const QDBusObjectPath&, const QString&, const QStringList&, uint)
Nov 03 15:19:57 alaska kded5[3913]: plasma-nm: Path: "/org/freedesktop/NetworkManager/Settings/7"
Nov 03 15:19:57 alaska kded5[3913]: plasma-nm: Setting name: "vpn"
Nov 03 15:19:57 alaska kded5[3913]: plasma-nm: Hints: ()
Nov 03 15:19:57 alaska kded5[3913]: plasma-nm: Flags: 4
Nov 03 15:19:57 alaska kded5[3913]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/2«"
Nov 03 15:19:57 alaska DiscoverNotifier[4204]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/2«"
Nov 03 15:19:57 alaska kdeconnectd[4193]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/2«"
Nov 03 15:19:57 alaska kded5[3913]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/1«"
Nov 03 15:19:57 alaska DiscoverNotifier[4204]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/1«"
Nov 03 15:19:57 alaska kdeconnectd[4193]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/1«"
Nov 03 15:19:57 alaska kded5[3913]: plasma-nm: virtual NMVariantMapMap SecretAgent::GetSecrets(const NMVariantMapMap&, const QDBusObjectPath&, const QString&, const QStringList&, uint)
Nov 03 15:19:57 alaska kded5[3913]: plasma-nm: Path: "/org/freedesktop/NetworkManager/Settings/7"
Nov 03 15:19:57 alaska kded5[3913]: plasma-nm: Setting name: "vpn"
Nov 03 15:19:57 alaska kded5[3913]: plasma-nm: Hints: ()
Nov 03 15:19:57 alaska kded5[3913]: plasma-nm: Flags: 5
Nov 03 15:19:59 alaska DiscoverNotifier[4204]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/2«"
Nov 03 15:19:59 alaska kdeconnectd[4193]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/2«"
Nov 03 15:19:59 alaska kded5[3913]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/2«"
Nov 03 15:19:59 alaska NetworkManager[707]: <error> [1635949199.4976] vpn-connection[0x55a570ad2790,f0e6c827-300c-4595-9513-a49d3d2c9d5d,"INJKatALASKA-TO-IPFire",0]: final secrets request failed to provide sufficient secrets
Nov 03 15:19:59 alaska DiscoverNotifier[4204]: "Das Objekt existiert nicht am Pfad »/org/freedesktop/NetworkManager/ActiveConnection/1«"
Nov 03 15:19:59 alaska NetworkManager[707]: <info>  [1635949199.5058] vpn-connection[0x55a570ad2790,f0e6c827-300c-4595-9513-a49d3d2c9d5d,"INJKatALASKA-TO-IPFire",0]: VPN plugin: state changed: stopped (6)