https://bugs.kde.org/show_bug.cgi?id=428920

            Bug ID: 428920
           Summary: Settings crashes when trying to open window
                    decorations
           Product: systemsettings
           Version: 5.17.5
          Platform: Debian testing
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: kcm_style
          Assignee: plasma-b...@kde.org
          Reporter: dabiswas...@gmail.com
                CC: zom...@protonmail.com
  Target Milestone: ---

SUMMARY


STEPS TO REPRODUCE
1. Open system settings
2. Tap on application style
3. Tap on window decorations

OBSERVED RESULT
System settings crashes with this message:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f68b039fcc0 (LWP 24174))]

Thread 21 (Thread 0x7f6852f18700 (LWP 24206)):
#0  0x00007f68ae9de35f in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f68ac84ce1e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f68ac84cf3f in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f68aef8672b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f68aef2db7b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f68aed4e9be in QThread::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f68ae03c085 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f68aed4fb01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 20 (Thread 0x7f6853719700 (LWP 24197)):
#0  0x00007f68ae9d9e2c in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f68ac8990ff in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f68ac84c926 in g_main_context_check () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f68ac84cdc5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f68ac84d17b in g_main_loop_run () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f68581be746 in ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f68ac875dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 19 (Thread 0x7f6853f1a700 (LWP 24196)):
#0  0x00007f68ae9de35f in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f68ac84ce1e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f68ac84cf3f in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f68ac84cf91 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f68ac875dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 18 (Thread 0x7f6859ff4700 (LWP 24194)):
#0  0x00007f68ad45a7b2 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f689ae44c9b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f689ae44777 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 17 (Thread 0x7f685abfa700 (LWP 24193)):
#0  0x00007f68ad45a7b2 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f689ae44c9b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f689ae44777 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 16 (Thread 0x7f685bfff700 (LWP 24192)):
#0  0x00007f68ad45a7b2 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f689ae44c9b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f689ae44777 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 15 (Thread 0x7f686ccf3700 (LWP 24191)):
#0  0x00007f68ad45a7b2 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f689ae44c9b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f689ae44777 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 14 (Thread 0x7f686e5ca700 (LWP 24189)):
#0  0x00007f68aef86659 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f68ac84c2ef in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f68ac84cd4b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f68ac84cf3f in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f68aef8672b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f68aef2db7b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f68aed4e9be in QThread::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f68ae03c085 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f68aed4fb01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 13 (Thread 0x7f686ffff700 (LWP 24188)):
#0  0x00007f68ac89dd99 in g_mutex_lock () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f68ac84c83c in g_main_context_check () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f68ac84cdc5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f68ac84cf3f in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f68aef8672b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f68aef2db7b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f68aed4e9be in QThread::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f68ae03c085 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f68aed4fb01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 12 (Thread 0x7f688cff9700 (LWP 24187)):
#0  0x00007f68ad45aad8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f68aed55aa4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f68aed53ae1 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f68aed4fb01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 11 (Thread 0x7f688d7fa700 (LWP 24186)):
#0  0x00007f68ad45aad8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f68aed55aa4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f68aed53ae1 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f68aed4fb01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7f688dffb700 (LWP 24185)):
#0  0x00007f68ad45a7b2 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f689ae44c9b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f689ae44777 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7f688e7fc700 (LWP 24184)):
#0  0x00007f68ad45a7b2 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f689ae44c9b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f689ae44777 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7f688effd700 (LWP 24183)):
#0  0x00007f68ad45a7b2 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f689ae44c9b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f689ae44777 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7f688f7fe700 (LWP 24182)):
#0  0x00007f68ad45a7b2 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f689ae44c9b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f689ae44777 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7f688ffff700 (LWP 24181)):
#0  0x00007f68ad45a7b2 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f689ae44c9b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f689ae44777 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7f68948da700 (LWP 24180)):
#0  0x00007f68ad45a7b2 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f689ae44c9b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f689ae44777 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7f68a0f82700 (LWP 24179)):
#0  0x00007f68ad45a7b2 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f689ae44c9b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f689ae44777 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f68a3fff700 (LWP 24177)):
#0  0x00007f68ae96fcff in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f68ae9d9e17 in read () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007f68ac8990ff in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f68ac84c926 in g_main_context_check () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f68ac84cdc5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f68ac84cf3f in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f68aef8672b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f68aef2db7b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f68aed4e9be in QThread::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f68af1e3a27 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f68aed4fb01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f68a9582700 (LWP 24176)):
#0  0x00007f68ae9de35f in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f68ad407d02 in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f68ad40998a in xcb_wait_for_event () from
/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f68a9db5260 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f68aed4fb01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f68ad453ea7 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f68ae9e8d4f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f68b039fcc0 (LWP 24174)):
[KCrash Handler]
#4  0x00007f68aef772f4 in QVariant::toMap() const () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f685243d28f in ?? () from
/lib/x86_64-linux-gnu/libkdecorations2.so.5
#6  0x00007f685243d7c2 in KDecoration2::Decoration::Decoration(QObject*,
QList<QVariant> const&) () from /lib/x86_64-linux-gnu/libkdecorations2.so.5
#7  0x00007f685204eece in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kdecoration2/breezedecoration.so
#8  0x00007f6852054d5a in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kdecoration2/breezedecoration.so
#9  0x00007f68b0092612 in KPluginFactory::create(char const*, QWidget*,
QObject*, QList<QVariant> const&, QString const&) () from
/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#10 0x00007f685216eed9 in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kwin/private/kdecoration/libkdecorationprivatedeclarative.so
#11 0x00007f685216d94b in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kwin/private/kdecoration/libkdecorationprivatedeclarative.so
#12 0x00007f68ae00fbdd in
QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () from
/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007f68adfa989c in
QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) () from
/lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007f68adfa9e27 in QQmlEnginePrivate::incubate(QQmlIncubator&,
QQmlContextData*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007f68ac5ff502 in ?? () from /lib/x86_64-linux-gnu/libQt5QmlModels.so.5
#16 0x00007f68ae495b96 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007f68ae48783d in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007f68ae496bd0 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007f68ae49c8c8 in QQuickItemView::componentComplete() () from
/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007f68ae00fbdd in
QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () from
/lib/x86_64-linux-gnu/libQt5Qml.so.5
#21 0x00007f68adfa989c in
QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) () from
/lib/x86_64-linux-gnu/libQt5Qml.so.5
#22 0x00007f68adfa9e27 in QQmlEnginePrivate::incubate(QQmlIncubator&,
QQmlContextData*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#23 0x00007f68adfa4e52 in QQmlComponent::create(QQmlIncubator&, QQmlContext*,
QQmlContext*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#24 0x00007f68ae6fc01e in
KDeclarative::QmlObject::completeInitialization(QHash<QString, QVariant>
const&) () from /lib/x86_64-linux-gnu/libKF5Declarative.so.5
#25 0x00007f68b0499850 in KQuickAddons::ConfigModule::mainUi() () from
/lib/x86_64-linux-gnu/libKF5QuickAddons.so.5
#26 0x00007f68b059a91b in KCModuleLoader::loadModule(KCModuleInfo const&,
KCModuleLoader::ErrorReporting, QWidget*, QStringList const&) () from
/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#27 0x00007f68b05a2eb2 in ?? () from /lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#28 0x00007f68b05a32f8 in KCModuleProxy::realModule() const () from
/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#29 0x00007f68b05dcdf7 in ModuleView::updatePageIconHeader(KPageWidgetItem*,
bool) () from /lib/x86_64-linux-gnu/libsystemsettingsview.so.3
#30 0x00007f68b05de0bd in ModuleView::addModule(KCModuleInfo*) () from
/lib/x86_64-linux-gnu/libsystemsettingsview.so.3
#31 0x00007f68b05de4a5 in ModuleView::loadModule(QModelIndex const&) () from
/lib/x86_64-linux-gnu/libsystemsettingsview.so.3
#32 0x00007f68a17e04a1 in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/systemsettings_sidebar_mode.so
#33 0x00007f68a17df1bc in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/systemsettings_sidebar_mode.so
#34 0x00007f68a17df67b in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/systemsettings_sidebar_mode.so
#35 0x00007f68adecb842 in
QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*,
QQmlPropertyData*, QV4::Value const&) () from
/lib/x86_64-linux-gnu/libQt5Qml.so.5
#36 0x00007f68adecc6e7 in
QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*,
QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&)
() from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#37 0x00007f68adecc885 in QV4::QObjectWrapper::virtualPut(QV4::Managed*,
QV4::PropertyKey, QV4::Value const&, QV4::Value*) () from
/lib/x86_64-linux-gnu/libQt5Qml.so.5
#38 0x00007f68ade5db53 in QV4::Lookup::setterFallback(QV4::Lookup*,
QV4::ExecutionEngine*, QV4::Value&, QV4::Value const&) () from
/lib/x86_64-linux-gnu/libQt5Qml.so.5
#39 0x00007f68adee50d8 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#40 0x00007f68adee8f07 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#41 0x00007f68ade8484d in QV4::Function::call(QV4::Value const*, QV4::Value
const*, int, QV4::ExecutionContext const*) () from
/lib/x86_64-linux-gnu/libQt5Qml.so.5
#42 0x00007f68adffc585 in QQmlJavaScriptExpression::evaluate(QV4::CallData*,
bool*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#43 0x00007f68adfaf78b in QQmlBoundSignalExpression::evaluate(void**) () from
/lib/x86_64-linux-gnu/libQt5Qml.so.5
#44 0x00007f68adfafc70 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#45 0x00007f68adfdf3ad in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*,
void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#46 0x00007f68aef65325 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#47 0x00007f68a879af11 in QQuickAbstractButtonPrivate::handleRelease(QPointF
const&) () from /lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5
#48 0x00007f68a87b7fb9 in QQuickControl::mouseReleaseEvent(QMouseEvent*) ()
from /lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5
#49 0x00007f68ae3db2b8 in QQuickItem::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Quick.so.5
#50 0x00007f68afa7e14f in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#51 0x00007f68aef2f1ba in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#52 0x00007f68ae3f7244 in
QQuickWindowPrivate::deliverMouseEvent(QQuickPointerMouseEvent*) () from
/lib/x86_64-linux-gnu/libQt5Quick.so.5
#53 0x00007f68ae3f857b in
QQuickWindowPrivate::deliverPointerEvent(QQuickPointerEvent*) () from
/lib/x86_64-linux-gnu/libQt5Quick.so.5
#54 0x00007f68af39c665 in QWindow::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Gui.so.5
#55 0x00007f68afa7e14f in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#56 0x00007f68aef2f1ba in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#57 0x00007f68ae719d57 in QQuickWidget::mouseReleaseEvent(QMouseEvent*) () from
/lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#58 0x00007f68afabdf8e in QWidget::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#59 0x00007f68afa7e14f in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#60 0x00007f68afa8503b in QApplication::notify(QObject*, QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#61 0x00007f68aef2f1ba in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#62 0x00007f68afa84066 in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) ()
from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#63 0x00007f68afad5ff1 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#64 0x00007f68afad931e in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#65 0x00007f68afa7e14f in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#66 0x00007f68aef2f1ba in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#67 0x00007f68af39049b in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#68 0x00007f68af36663b in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#69 0x00007f68a9db625a in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#70 0x00007f68ac84cbdb in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#71 0x00007f68ac84ce88 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#72 0x00007f68ac84cf3f in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#73 0x00007f68aef8670f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#74 0x00007f68aef2db7b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#75 0x00007f68aef35df0 in QCoreApplication::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#76 0x00005568dd01664a in ?? ()
#77 0x00007f68ae911cca in __libc_start_main () from
/lib/x86_64-linux-gnu/libc.so.6
#78 0x00005568dd0166ca in _start ()
[Inferior 1 (process 24174) detached]


EXPECTED RESULT
Window decorations will open

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Linux kernel 5.9.0.1-amd64
(available in About System)
KDE Plasma Version: 5.17.5
KDE Frameworks Version: 5.74.0
Qt Version: 5.15.1

ADDITIONAL INFORMATION
Tried in both plasma & openbox-kde-session. Plasma shows some more unusual
behaviour but the debugger crashes when I try to report it

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