Application: systemsettings5 (5.21.5)

Qt Version: 5.15.2
Frameworks Version: 5.82.0
Operating System: Linux 5.12.6-300.fc34.x86_64 x86_64
Windowing System: Wayland
Drkonqi Version: 5.21.5
Distribution: Fedora 34 (KDE Plasma)

-- Information about the crash:
- What I was doing when the application crashed:
I added a window rule and when click on Apply, systemsettings crash every time.

The crash can be reproduced every time.

-- Backtrace:
Application: Preferencias del sistema (systemsettings5), signal: Segmentation fault

[KCrash Handler]
#4  0x00007f6bc3a14ed4 in QWaylandClientExtensionPrivate::handleRegistryGlobal(void*, wl_registry*, unsigned int, QString const&, unsigned int) () from /lib64/libQt5WaylandClient.so.5
#5  0x00007f6bc3a013e9 in QtWaylandClient::QWaylandDisplay::registry_global(unsigned int, QString const&, unsigned int) () from /lib64/libQt5WaylandClient.so.5
#6  0x00007f6bc3a1d783 in QtWayland::wl_registry::handle_global(void*, wl_registry*, unsigned int, char const*, unsigned int) () from /lib64/libQt5WaylandClient.so.5
#7  0x00007f6bc13aec04 in ffi_call_unix64 () from /lib64/libffi.so.6
#8  0x00007f6bc13ae107 in ffi_call () from /lib64/libffi.so.6
#9  0x00007f6bc396ed10 in wl_closure_invoke.constprop () from /lib64/libwayland-client.so.0
#10 0x00007f6bc396f42b in dispatch_event.isra () from /lib64/libwayland-client.so.0
#11 0x00007f6bc396f61c in wl_display_dispatch_queue_pending () from /lib64/libwayland-client.so.0
#12 0x00007f6bc39f97b3 in QtWaylandClient::QWaylandDisplay::flushRequests() () from /lib64/libQt5WaylandClient.so.5
#13 0x00007f6bc5d864fd in void doActivate<false>(QObject*, int, void**) () from /lib64/libQt5Core.so.5
#14 0x00007f6bc5d88b3a in QSocketNotifier::activated(QSocketDescriptor, QSocketNotifier::Type, QSocketNotifier::QPrivateSignal) () from /lib64/libQt5Core.so.5
#15 0x00007f6bc5d892d4 in QSocketNotifier::event(QEvent*) () from /lib64/libQt5Core.so.5
#16 0x00007f6bc68e0e73 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#17 0x00007f6bc5d55f48 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#18 0x00007f6bc5da317f in socketNotifierSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5Core.so.5
#19 0x00007f6bc3b154cf in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#20 0x00007f6bc3b694e8 in g_main_context_iterate.constprop () from /lib64/libglib-2.0.so.0
#21 0x00007f6bc3b12c03 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#22 0x00007f6bc5da26f8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#23 0x00007f6bc5d549b2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#24 0x00007f6bc5d5c544 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#25 0x00005574e507dd4c in main ()
[Inferior 1 (process 6741) detached]

Reported using DrKonqi