Application: systemsettings (5.25.1)

Qt Version: 5.15.5
Frameworks Version: 5.95.0
Operating System: Linux 5.18.6-arch1-1 x86_64
Windowing System: X11
Distribution: Arch Linux
DrKonqi: 5.25.1 [KCrashBackend]

-- Information about the crash:
Suddenly whenever I got to System Settings >  Windwos Management > Windows rules , systemsettings is crashing. Everytime I do it happens. 

This started to thappen from when I manually compiled and installed KwinFT, but not sure if it's related.  Hopefully the debug info is helpful.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault

[KCrash Handler]
#4  0x00007f45edfd82c2 in KWin::RuleItem::setOptionsData (this=this@entry=0x0, data=...) at /home/booni/builds/Sources/kwinft-Plasma-5.25/kcmkwin/kwinrules/ruleitem.cpp:156
#5  0x00007f45edfdddc2 in operator() (__closure=0x55e11eb49e20) at /home/booni/builds/Sources/kwinft-Plasma-5.25/kcmkwin/kwinrules/rulesmodel.cpp:461
#6  QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, KWin::RulesModel::populateRuleList()::<lambda()> >::call (arg=<optimized out>, f=...) at /usr/include/qt/QtCore/qobjectdefs_impl.h:146
#7  QtPrivate::Functor<KWin::RulesModel::populateRuleList()::<lambda()>, 0>::call<QtPrivate::List<>, void> (arg=<optimized out>, f=...) at /usr/include/qt/QtCore/qobjectdefs_impl.h:256
#8  QtPrivate::QFunctorSlotObject<KWin::RulesModel::populateRuleList()::<lambda()>, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized out>, this_=0x55e11eb49e10, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/qt/QtCore/qobjectdefs_impl.h:443
#9  0x00007f46144bd621 in QtPrivate::QSlotObjectBase::call (a=<optimized out>, r=<optimized out>, this=<optimized out>, this=<optimized out>, r=<optimized out>, a=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#10 doActivate<false> (sender=0x55e11d43e730, signal_index=30, argv=0x7ffe5a379b30) at kernel/qobject.cpp:3886
#11 0x00007f45edfe0083 in operator() (self=<optimized out>, __closure=0x55e11e0979e0) at /home/booni/builds/Sources/kwinft-Plasma-5.25/kcmkwin/kwinrules/rulesmodel.cpp:841
#12 QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List<QDBusPendingCallWatcher*>, void, KWin::RulesModel::updateVirtualDesktops()::<lambda(QDBusPendingCallWatcher*)> >::call (arg=<optimized out>, f=...) at /usr/include/qt/QtCore/qobjectdefs_impl.h:146
#13 QtPrivate::Functor<KWin::RulesModel::updateVirtualDesktops()::<lambda(QDBusPendingCallWatcher*)>, 1>::call<QtPrivate::List<QDBusPendingCallWatcher*>, void> (arg=<optimized out>, f=...) at /usr/include/qt/QtCore/qobjectdefs_impl.h:256
#14 QtPrivate::QFunctorSlotObject<KWin::RulesModel::updateVirtualDesktops()::<lambda(QDBusPendingCallWatcher*)>, 1, QtPrivate::List<QDBusPendingCallWatcher*>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized out>, this_=0x55e11e0979d0, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/qt/QtCore/qobjectdefs_impl.h:443
#15 0x00007f46144bd621 in QtPrivate::QSlotObjectBase::call (a=<optimized out>, r=<optimized out>, this=<optimized out>, this=<optimized out>, r=<optimized out>, a=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#16 doActivate<false> (sender=0x55e11d4267a0, signal_index=3, argv=0x7ffe5a379d20) at kernel/qobject.cpp:3886
#17 0x00007f4613c7b814 in QDBusPendingCallWatcher::finished (this=<optimized out>, _t1=<optimized out>) at .moc/moc_qdbuspendingcall.cpp:158
#18 0x00007f46144b0830 in QObject::event (this=0x55e11d4267a0, e=0x55e11d32d000) at kernel/qobject.cpp:1314
#19 0x00007f4615178abc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x55e11d4267a0, e=0x55e11d32d000) at kernel/qapplication.cpp:3637
#20 0x00007f461448cf38 in QCoreApplication::notifyInternal2 (receiver=0x55e11d4267a0, event=0x55e11d32d000) at kernel/qcoreapplication.cpp:1064
#21 0x00007f461448da33 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55e11c964e00) at kernel/qcoreapplication.cpp:1821
#22 0x00007f46144d3818 in postEventSourceDispatch (s=0x55e11ca27a30) at kernel/qeventdispatcher_glib.cpp:277
#23 0x00007f4612c6fc6b in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#24 0x00007f4612cc6001 in ?? () from /usr/lib/libglib-2.0.so.0
#25 0x00007f4612c6d392 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#26 0x00007f46144d764c in QEventDispatcherGlib::processEvents (this=0x55e11ca292f0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#27 0x00007f46144856ec in QEventLoop::exec (this=0x7ffe5a37a180, flags=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#28 0x00007f46144901e9 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#29 0x00007f4614939522 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1867
#30 0x00007f4615176eca in QApplication::exec () at kernel/qapplication.cpp:2829
#31 0x000055e11b414b93 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/systemsettings-5.25.1/app/main.cpp:183
[Inferior 1 (process 2343) detached]

Reported using DrKonqi