Application: systemsettings5 (5.21.5)

Qt Version: 5.15.2
Frameworks Version: 5.82.0
Operating System: Linux 5.12.5-300.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:

Window Management -> Window Behavior
Titlebar Actions tab -> Titlebar Actions -> Double-click -> select Shade
Advanced tab -> Window unshading -> hilight checkbox -> System Settings crashed.

This is for a new user ("testuser") on a fresh install from KDE Spins.

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault

[KCrash Handler]
#4  0x000055c7aa2fbb00 in ?? ()
#5  0x00007fc7f560eed7 in QWaylandClientExtensionPrivate::handleRegistryGlobal(void*, wl_registry*, unsigned int, QString const&, unsigned int) () from /lib64/libQt5WaylandClient.so.5
#6  0x00007fc7f55fb3e9 in QtWaylandClient::QWaylandDisplay::registry_global(unsigned int, QString const&, unsigned int) () from /lib64/libQt5WaylandClient.so.5
#7  0x00007fc7f5617783 in QtWayland::wl_registry::handle_global(void*, wl_registry*, unsigned int, char const*, unsigned int) () from /lib64/libQt5WaylandClient.so.5
#8  0x00007fc7f2fa8c04 in ffi_call_unix64 () from /lib64/libffi.so.6
#9  0x00007fc7f2fa8107 in ffi_call () from /lib64/libffi.so.6
#10 0x00007fc7f5568d10 in wl_closure_invoke.constprop () from /lib64/libwayland-client.so.0
#11 0x00007fc7f556942b in dispatch_event.isra () from /lib64/libwayland-client.so.0
#12 0x00007fc7f556961c in wl_display_dispatch_queue_pending () from /lib64/libwayland-client.so.0
#13 0x00007fc7f55f37b3 in QtWaylandClient::QWaylandDisplay::flushRequests() () from /lib64/libQt5WaylandClient.so.5
#14 0x00007fc7f79804fd in void doActivate<false>(QObject*, int, void**) () from /lib64/libQt5Core.so.5
#15 0x00007fc7f7982b3a in QSocketNotifier::activated(QSocketDescriptor, QSocketNotifier::Type, QSocketNotifier::QPrivateSignal) () from /lib64/libQt5Core.so.5
#16 0x00007fc7f79832d4 in QSocketNotifier::event(QEvent*) () from /lib64/libQt5Core.so.5
#17 0x00007fc7f84dae73 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#18 0x00007fc7f794ff48 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#19 0x00007fc7f799d17f in socketNotifierSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5Core.so.5
#20 0x00007fc7f570f4cf in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#21 0x00007fc7f57634e8 in g_main_context_iterate.constprop () from /lib64/libglib-2.0.so.0
#22 0x00007fc7f570cc03 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#23 0x00007fc7f799c6f8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#24 0x00007fc7f794e9b2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#25 0x00007fc7f7956544 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#26 0x000055c7a9299d4c in main ()
[Inferior 1 (process 35416) detached]

Reported using DrKonqi