Authentication error: SDDM::Auth::ERROR_INTERNAL

[Waqar144]

1. I was logged into an x11 session
2. I logged out
3. I changed session type to wayland
4. Typed my password and clicked login
5. Stuck

I have an external screen connected to my laptop

Log:

May 14 20:33:33 waqar-81x2 systemd[1540]: plasma-kded.service: Failed with result 'exit-code'.
May 14 20:33:36 waqar-81x2 dbus-broker-launch[109384]: Service file '/usr/share//dbus-1/services/org.kde.dolphin.FileManager1.service' is not named after the D-Bus name 'org.freedesktop.FileManager1'.
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: QObject: Cannot create children for a parent that is in a different thread.
                                                 (Parent is QGuiApplication(0x7ffe0c4dd130), parent's thread is QThread(0x55a011694e80), current thread is QThread(0x55a011ad7770)
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: QObject: Cannot create children for a parent that is in a different thread.
                                                 (Parent is QGuiApplication(0x7ffe0c4dd130), parent's thread is QThread(0x55a011694e80), current thread is QThread(0x55a011ad7770)
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: QObject: Cannot create children for a parent that is in a different thread.
                                                 (Parent is QGuiApplication(0x7ffe0c4dd130), parent's thread is QThread(0x55a011694e80), current thread is QThread(0x55a011ad7770)
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: QObject::installEventFilter(): Cannot filter events for objects in a different thread.
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: Failed to find a Kirigami platform plugin
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: file:///usr/share/sddm/themes/breeze/components/VirtualKeyboard.qml:12:1: Type InputPanel unavailable
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: qrc:/QtQuick/VirtualKeyboard/content/InputPanel.qml:138:5: Type Keyboard unavailable
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: qrc:/QtQuick/VirtualKeyboard/content/components/Keyboard.qml:38:1: module "QtQuick.VirtualKeyboard.Plugins" is not installed
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: QQmlEngine::setContextForObject(): Object already has a QQmlContext
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: QQmlEngine::setContextForObject(): Object already has a QQmlContext
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: Failed to find a Kirigami platform plugin
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: file:///usr/share/sddm/themes/breeze/components/VirtualKeyboard.qml:12:1: Type InputPanel unavailable
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: qrc:/QtQuick/VirtualKeyboard/content/InputPanel.qml:138:5: Type Keyboard unavailable
May 14 20:33:36 waqar-81x2 sddm-greeter[109380]: qrc:/QtQuick/VirtualKeyboard/content/components/Keyboard.qml:38:1: module "QtQuick.VirtualKeyboard.Plugins" is not installed
May 14 20:35:14 waqar-81x2 systemd[1540]: app-org.kde.konsole-8ed4e8b6049741c883e80eead29705da.scope: Stopping timed out. Killing.
May 14 20:35:14 waqar-81x2 systemd[1540]: app-org.kde.konsole-8ed4e8b6049741c883e80eead29705da.scope: Failed with result 'timeout'.
May 14 20:35:14 waqar-81x2 dbus-broker-launch[109499]: Service file '/usr/share//dbus-1/services/org.kde.dolphin.FileManager1.service' is not named after the D-Bus name 'org.freedesktop.FileManager1'.
May 14 20:35:14 waqar-81x2 dbus-broker-launch[109499]: Service file '/usr/share//dbus-1/services/org.kde.kscreen.service' is not named after the D-Bus name 'org.kde.KScreen'.
May 14 20:35:14 waqar-81x2 dbus-broker-launch[109499]: Service file '/usr/share//dbus-1/services/org.kde.plasma.Notifications.service' is not named after the D-Bus name 'org.freedesktop.Notifications'.
May 14 20:35:15 waqar-81x2 sddm[1308]: Authentication error: SDDM::Auth::ERROR_INTERNAL "Process crashed"
May 14 20:35:15 waqar-81x2 sddm[1308]: Auth: sddm-helper (--socket /tmp/sddm-auth-2ce6469b-2475-416a-a663-0261ef26b7a3 --id 3 --start /usr/bin/startplasma-x11 --user waqar) crashed (exit code 1)
May 14 20:35:15 waqar-81x2 sddm[1308]: Authentication error: SDDM::Auth::ERROR_INTERNAL "Process crashed"
May 14 20:35:15 waqar-81x2 sddm[1308]: Auth: sddm-helper exited with 1
May 14 20:35:15 waqar-81x2 sddm[1308]: Signal received: SIGTERM

[Vogtinator]

Looks more like a plasma issue, e.g. plasma-kded.service: Failed with result 'exit-code'.