backtrace full

```
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
        tid = <optimized out>
        ret = 0
        pd = <optimized out>
        old_mask = {__val = {0}}
        ret = <optimized out>
#1  0x00007f4db7895873 in __pthread_kill_internal (signo=6, threadid=<optimized out>) at pthread_kill.c:78
#2  0x00007f4db7842816 in __GI_raise (sig=6) at ../sysdeps/posix/raise.c:26
        ret = <optimized out>
#3  0x00007f4dba27adae in KCrash::defaultCrashHandler(int) (sig=6) at /usr/src/debug/kcrash-5.99.0-1.1.x86_64/src/kcrash.cpp:633
        crashRecursionCounter = 3
#4  0x00007f4db78428e0 in <signal handler called> () at /lib64/libc.so.6
#5  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
        tid = <optimized out>
        ret = 0
        pd = <optimized out>
        old_mask = {__val = {94020667511488}}
        ret = <optimized out>
#6  0x00007f4db7895873 in __pthread_kill_internal (signo=6, threadid=<optimized out>) at pthread_kill.c:78
#7  0x00007f4db7842816 in __GI_raise (sig=6) at ../sysdeps/posix/raise.c:26
        ret = <optimized out>
#8  0x00007f4db78428e0 in <signal handler called> () at /lib64/libc.so.6
#9  futex_wait (private=0, expected=2, futex_word=0x5582e28f1ea8) at ../sysdeps/nptl/futex-internal.h:146
        __arg4 = 0
        __arg2 = 128
        _a3 = 2
        _a1 = 94020635139752
        resultvar = <optimized out>
        __arg3 = 2
        __arg1 = 94020635139752
        _a4 = 0
        _a2 = 128
        __ret = <optimized out>
        err = <optimized out>
#10 __GI___lll_lock_wait (futex=futex@entry=0x5582e28f1ea8, private=0) at lowlevellock.c:49
#11 0x00007f4db7896e92 in lll_mutex_lock_optimized (mutex=0x5582e28f1ea8) at pthread_mutex_lock.c:48
        __futex = 0x5582e28f1ea8
        private = <optimized out>
        type = <optimized out>
        __PRETTY_FUNCTION__ = "___pthread_mutex_lock"
        id = <optimized out>
#12 ___pthread_mutex_lock (mutex=mutex@entry=0x5582e28f1ea8) at pthread_mutex_lock.c:93
        type = <optimized out>
        __PRETTY_FUNCTION__ = "___pthread_mutex_lock"
        id = <optimized out>
#13 0x00007f4dba4bcf89 in wl_proxy_marshal_array_flags (proxy=proxy@entry=0x5582ec1fa5c0, opcode=opcode@entry=1, interface=interface@entry=0x0, version=version@entry=1, flags=flags@entry=1, args=args@entry=0x7fffeb35e2c0) at ../src/wayland-client.c:834
        closure = <optimized out>
        new_proxy = <optimized out>
        message = <optimized out>
#14 0x00007f4dba4bde05 in wl_proxy_marshal_flags (proxy=0x5582ec1fa5c0, opcode=1, interface=0x0, version=1, flags=1) at ../src/wayland-client.c:791
        args = {{i = 0, u = 0, f = 0, s = 0x0, o = 0x0, n = 0, a = 0x0, h = 0}, {i = 0, u = 0, f = 0, s = 0x0, o = 0x0, n = 0, a = 0x0, h = 0}, {i = -1250227280, u = 3044740016, f = -1250227280, s = 0x7f4db57b0bb0 <QtMetaTypePrivate::QMetaTypeFunctionHelper<QtWayland::org_kde_kwin_appmenu*, true>::Construct(void*, void const*)> "H\211\370H\205\366t\006H\213\026H\211\027Ð\303ff.\017\037\204", o = 0x7f4db57b0bb0 <QtMetaTypePrivate::QMetaTypeFunctionHelper<QtWayland::org_kde_kwin_appmenu*, true>::Construct(void*, void const*)>, n = 3044740016, a = 0x7f4db57b0bb0 <QtMetaTypePrivate::QMetaTypeFunctionHelper<QtWayland::org_kde_kwin_appmenu*, true>::Construct(void*, void const*)>, h = -1250227280}, {i = -1250227296, u = 3044740000, f = -1250227296, s = 0x7f4db57b0ba0 <QtMetaTypePrivate::QMetaTypeFunctionHelper<QtWayland::org_kde_kwin_appmenu*, true>::Destruct(void*)> "\303ff.\017\037\204", o = 0x7f4db57b0ba0 <QtMetaTypePrivate::QMetaTypeFunctionHelper<QtWayland::org_kde_kwin_appmenu*, true>::Destruct(void*)>, n = 3044740000, a = 0x7f4db57b0ba0 <QtMetaTypePrivate::QMetaTypeFunctionHelper<QtWayland::org_kde_kwin_appmenu*, true>::Destruct(void*)>, h = -1250227296}, {i = 0, u = 0, f = 0, s = 0x0, o = 0x0, n = 0, a = 0x0, h = 0}, {i = 8, u = 8, f = 8, s = 0x10400000008 <error: Cannot access memory at address 0x10400000008>, o = 0x10400000008, n = 8, a = 0x10400000008, h = 8}, {i = 3, u = 3, f = 3, s = 0x84300000003 <error: Cannot access memory at address 0x84300000003>, o = 0x84300000003, n = 3, a = 0x84300000003, h = 3}, {i = 0, u = 0, f = 0, s = 0x0, o = 0x0, n = 0, a = 0x0, h = 0}, {i = -460918240, u = 3834049056, f = -460918240, s = 0x5582e486f220 "\250)9\242M\177", o = 0x5582e486f220, n = 3834049056, a = 0x5582e486f220, h = -460918240}, {i = -1145254656, u = 3149712640, f = -1145254656, s = 0x4d0702d3bbbccd00 <error: Cannot access memory at address 0x4d0702d3bbbccd00>, o = 0x4d0702d3bbbccd00, n = 3149712640, a = 0x4d0702d3bbbccd00, h = -1145254656}, {i = -460918240, u = 3834049056, f = -460918240, s = 0x5582e486f220 "\250)9\242M\177", o = 0x5582e486f220, n = 3834049056, a = 0x5582e486f220, h = -460918240}, {i = -348789600, u = 3946177696, f = -348789600, s = 0x7fffeb35e4a0 "\300\334#\355\202U", o = 0x7fffeb35e4a0, n = 3946177696, a = 0x7fffeb35e4a0, h = -348789600}, {i = -1543471640, u = 2751495656, f = -1543471640, s = 0x7f4da4007de8 "\300\334#\355\202U", o = 0x7f4da4007de8, n = 2751495656, a = 0x7f4da4007de8, h = -1543471640}, {i = -1206796919, u = 3088170377, f = -1206796919, s = 0x7f4db811bd89 <(anonymous namespace)::customConstruct(QVariant::Private*, void const*)+233> "H\203;", o = 0x7f4db811bd89 <(anonymous namespace)::customConstruct(QVariant::Private*, void const*)+233>, n = 3088170377, a = 0x7f4db811bd89 <(anonymous namespace)::customConstruct(QVariant::Private*, void const*)+233>, h = -1206796919}, {i = -348789776, u = 3946177520, f = -348789776, s = 0x7fffeb35e3f0 "", o = 0x7fffeb35e3f0, n = 3946177520, a = 0x7fffeb35e3f0, h = -348789776}, {i = -1193651202, u = 3101316094, f = -1193651202, s = 0x7f4db8da53fe <QApplicationPrivate::notify_helper(QObject*, QEvent*)+126> "\200e\022\375H\203\304\b[]A\\A]\303\017\037", o = 0x7f4db8da53fe <QApplicationPrivate::notify_helper(QObject*, QEvent*)+126>, n = 3101316094, a = 0x7f4db8da53fe <QApplicationPrivate::notify_helper(QObject*, QEvent*)+126>, h = -1193651202}, {i = -460918240, u = 3834049056, f = -460918240, s = 0x5582e486f220 "\250)9\242M\177", o = 0x5582e486f220, n = 3834049056, a = 0x5582e486f220, h = -460918240}, {i = -1145254656, u = 3149712640, f = -1145254656, s = 0x4d0702d3bbbccd00 <error: Cannot access memory at address 0x4d0702d3bbbccd00>, o = 0x4d0702d3bbbccd00, n = 3149712640, a = 0x4d0702d3bbbccd00, h = -1145254656}, {i = 0, u = 0, f = 0, s = 0x0, o = 0x0, n = 0, a = 0x0, h = 0}, {i = 0, u = 0, f = 0, s = 0x0, o = 0x0, n = 0, a = 0x0, h = 0}}
        ap = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fffeb35e460, reg_save_area = 0x7fffeb35e370}}
#15 0x00007f4db57b5b05 in org_kde_kwin_appmenu_release (org_kde_kwin_appmenu=0x5582ec1fa5c0) at /usr/src/debug/plasma-integration-5.26.3/build/src/platformtheme/wayland-appmenu-client-protocol.h:180
        appMenu = 0x5582ed23dcc0
        decoPallete = <optimized out>
        w = 0x5582e486f220
#16 QtWayland::org_kde_kwin_appmenu::release() (this=0x5582ed23dcc0) at /usr/src/debug/plasma-integration-5.26.3/build/src/platformtheme/qwayland-appmenu.cpp:129
        appMenu = 0x5582ed23dcc0
        decoPallete = <optimized out>
        w = 0x5582e486f220
#17 KWaylandIntegration::shellSurfaceDestroyed(QWindow*) (this=<optimized out>, w=0x5582e486f220) at /usr/src/debug/plasma-integration-5.26.3/src/platformtheme/kwaylandintegration.cpp:168
        appMenu = 0x5582ed23dcc0
        decoPallete = <optimized out>
        w = 0x5582e486f220
#18 KWaylandIntegration::eventFilter(QObject*, QEvent*) (this=<optimized out>, watched=0x5582e486f220, event=<optimized out>) at /usr/src/debug/plasma-integration-5.26.3/src/platformtheme/kwaylandintegration.cpp:109
        w = 0x5582e486f220
#19 0x00007f4db80dbd8e in QCoreApplicationPrivate::sendThroughApplicationEventFilters(QObject*, QEvent*) (this=this@entry=0x5582e28d4c00, receiver=receiver@entry=0x5582e486f220, event=event@entry=0x7fffeb35e5f0) at kernel/qcoreapplication.cpp:1172
        obj = <optimized out>
        i = 11
#20 0x00007f4db8da5438 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=0x5582e28d4c00, receiver=0x5582e486f220, e=0x7fffeb35e5f0) at kernel/qapplication.cpp:3608
        consumed = false
        filtered = false
#21 0x00007f4db80dc128 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x5582e486f220, event=0x7fffeb35e5f0) at kernel/qcoreapplication.cpp:1064
        selfRequired = true
        result = false
        cbdata = {0x5582e486f220, 0x7fffeb35e5f0, 0x7fffeb35e59f}
        d = <optimized out>
        threadData = 0x5582e28d2f60
        scopeLevelCounter = {threadData = 0x5582e28d2f60}
#22 0x00007f4db8584ad4 in QWindowPrivate::setVisible(bool) (visible=false, this=<optimized out>) at kernel/qwindow.cpp:412
        hideEvent = {<QEvent> = {_vptr.QEvent = 0x7f4db8b029e0 <vtable for QHideEvent+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f4db82a30e0 <qt_meta_stringdata_QEvent>, data = 0x7f4db82a2b20 <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = 0x0, t = 18, posted = 0, spont = 0, m_accept = 1, reserved = 7249}, <No data fields>}
        q = 0x5582e486f220
        geometryApplied = true
        d = <optimized out>
#23 QWindow::setVisible(bool) (this=<optimized out>, visible=false) at kernel/qwindow.cpp:630
        d = <optimized out>
#24 0x00007f4dba6658b2 in PlasmaQuick::Dialog::setVisible(bool) (this=<optimized out>, visible=<optimized out>) at /usr/src/debug/plasma-framework-5.99.0-1.1.x86_64/src/plasmaquick/dialog.cpp:1690
#25 0x00007f4dba665a56 in PlasmaQuick::Dialog::focusOutEvent(QFocusEvent*) (this=0x5582e486f220, ev=0x7fffeb35e780) at /usr/src/debug/plasma-framework-5.99.0-1.1.x86_64/src/plasmaquick/dialog.cpp:1415
        parentHasFocus = false
        parentWindow = <optimized out>
        focusWindow = 0x0
        childHasFocus = false
#26 0x00007f4db8587bc3 in QWindow::event(QEvent*) (this=0x5582e486f220, ev=<optimized out>) at kernel/qwindow.cpp:2394
        state = {disabled = 1, selected = 1, focusable = 0, focused = 1, pressed = 0, checkable = 1, checked = 0, checkStateMixed = 1, readOnly = 0, hotTracked = 1, defaultButton = 1, expanded = 1, collapsed = 1, busy = 1, expandable = 0, marqueed = 1, animated = 1, invisible = 0, offscreen = 1, sizeable = 1, movable = 0, selfVoicing = 0, selectable = 0, linked = 0, traversed = 0, multiSelectable = 0, extSelectable = 0, passwordEdit = 1, hasPopup = 1, modal = 1, active = 0, invalid = 1, editable = 1, multiLine = 0, selectableText = 1, supportsAutoCompletion = 1, searchEdit = 0}
        event = {<QAccessibleEvent> = {_vptr.QAccessibleEvent = 0x5582e1976020 <QCoreApplication::self>, m_type = 3149712640, m_object = 0x5582e486f220, {m_child = -1145254656, m_uniqueId = 3149712640}}, m_changedStates = {disabled = 0, selected = 0, focusable = 0, focused = 0, pressed = 0, checkable = 1, checked = 0, checkStateMixed = 0, readOnly = 0, hotTracked = 1, defaultButton = 0, expanded = 0, collapsed = 1, busy = 1, expandable = 1, marqueed = 1, animated = 0, invisible = 1, offscreen = 1, sizeable = 0, movable = 0, selfVoicing = 0, selectable = 0, linked = 1, traversed = 0, multiSelectable = 0, extSelectable = 1, passwordEdit = 0, hasPopup = 0, modal = 1, active = 1, invalid = 1, editable = 0, multiLine = 1, selectableText = 0, supportsAutoCompletion = 0, searchEdit = 0}}
#27 0x00007f4db8da53fe in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x5582e486f220, e=0x7fffeb35e780) at kernel/qapplication.cpp:3637
        consumed = false
        filtered = false
#28 0x00007f4db80dc128 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x5582e486f220, event=0x7fffeb35e780) at kernel/qcoreapplication.cpp:1064
        selfRequired = true
        result = false
        cbdata = {0x5582e486f220, 0x7fffeb35e780, 0x7fffeb35e70f}
        d = <optimized out>
        threadData = 0x5582e28d2f60
        scopeLevelCounter = {threadData = 0x5582e28d2f60}
#29 0x00007f4db8577989 in QGuiApplicationPrivate::processActivatedEvent(QWindowSystemInterfacePrivate::ActivatedWindowEvent*) (e=0x5582ea143ad0) at kernel/qguiapplication.cpp:2497
        r = <optimized out>
        focusOut = {<QEvent> = {_vptr.QEvent = 0x7f4db8b02740 <vtable for QFocusEvent+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f4db82a30e0 <qt_meta_stringdata_QEvent>, data = 0x7f4db82a2b20 <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = 0x0, t = 9, posted = 0, spont = 1, m_accept = 1, reserved = 0}, m_reason = Qt::OtherFocusReason}
        previous = 0x5582e486f220
        newFocus = <optimized out>
        previousFocusObject = <optimized out>
#30 0x00007f4db854f37c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) (flags=...) at kernel/qwindowsysteminterface.cpp:1169
        event = 0x5582ea143ad0
        nevents = 1
#31 0x00007f4db77661e0 in userEventSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at qeventdispatcher_glib.cpp:74
        userEventSource = <optimized out>
        dispatcher = <optimized out>
#32 0x00007f4db646da90 in g_main_dispatch (context=0x7f4dac005010) at ../glib/gmain.c:3444
        dispatch = 0x7f4db77661d0 <userEventSourceDispatch(GSource*, GSourceFunc, gpointer)>
        prev_source = 0x0
        begin_time_nsec = 0
        was_in_call = 0
        user_data = 0x0
        callback = 0x0
        cb_funcs = 0x0
        cb_data = 0x0
        need_destroy = <optimized out>
        source = 0x5582e29071e0
        current = 0x5582e2eb5b70
        i = 1
        __func__ = "g_main_dispatch"
#33 g_main_context_dispatch (context=context@entry=0x7f4dac005010) at ../glib/gmain.c:4162
#34 0x00007f4db646de48 in g_main_context_iterate (context=context@entry=0x7f4dac005010, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4238
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 22
        fds = 0x5582e74d9990
#35 0x00007f4db646dedc in g_main_context_iteration (context=0x7f4dac005010, may_block=1) at ../glib/gmain.c:4303
        retval = <optimized out>
#36 0x00007f4db8133b56 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x5582e2917370, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x5582e2917c50
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#37 0x00007f4db80dab9b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fffeb35e9f0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
        d = 0x5582e2e602f0
        threadData = <optimized out>
        locker = {val = 94020635051496}
        app = <optimized out>
#38 0x00007f4db80e2d06 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
        threadData = 0x5582e28d2f60
        eventLoop = {<QObject> = {_vptr.QObject = 0x7f4db83b2f88 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f4db82a77e0 <qt_meta_stringdata_QObject>, data = 0x7f4db82a76c0 <qt_meta_data_QObject>, static_metacall = 0x7f4db8111c40 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x5582e2e602f0}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f4db82aa780 <qt_meta_stringdata_Qt>, data = 0x7f4db82a7900 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x5582e1971280 <QObject::staticMetaObject>}, stringdata = 0x7f4db82a1f60 <qt_meta_stringdata_QEventLoop>, data = 0x7f4db82a1f00 <qt_meta_data_QEventLoop>, static_metacall = 0x7f4db80da8d0 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimized out>
#39 0x00007f4db856ee4c in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1870
#40 0x00007f4db8da5375 in QApplication::exec() () at kernel/qapplication.cpp:2829
#41 0x00005582e18fc306 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.26.3/shell/main.cpp:233
        format = {d = 0x5582e28e6b00}
        qpaVariable = <optimized out>
        app = {<QGuiApplication> = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x7f4db92b8f08 <vtable for QApplication+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f4db82a77e0 <qt_meta_stringdata_QObject>, data = 0x7f4db82a76c0 <qt_meta_data_QObject>, static_metacall = 0x7f4db8111c40 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x5582e28d4c00}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f4db82aa780 <qt_meta_stringdata_Qt>, data = 0x7f4db82a7900 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x5582e1971280 <QObject::staticMetaObject>}, stringdata = 0x7f4db82a2660 <qt_meta_stringdata_QCoreApplication>, data = 0x7f4db82a2540 <qt_meta_data_QCoreApplication>, static_metacall = 0x7f4db80dd940 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0x7fffeb35eb60}, static staticMetaObject = {d = {superdata = {direct = 0x5582e1971700 <QCoreApplication::staticMetaObject>}, stringdata = 0x7f4db8a01800 <qt_meta_stringdata_QGuiApplication>, data = 0x7f4db8a01580 <qt_meta_data_QGuiApplication>, static_metacall = 0x7f4db85745d0 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x5582e1971a00 <QGuiApplication::staticMetaObject>}, stringdata = 0x7f4db91548c0 <qt_meta_stringdata_QApplication>, data = 0x7f4db9154740 <qt_meta_data_QApplication>, static_metacall = 0x7f4db8da8f10 <QApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        aboutData = {d = std::unique_ptr<class KAboutDataPrivate> = {get() = 0x5582e2c75bb0}}
        replace = <optimized out>
        corona = 0x5582e2c76c00
        service = {<QObject> = {_vptr.QObject = 0x7f4dba0fc2b0 <vtable for KDBusService+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f4db82a77e0 <qt_meta_stringdata_QObject>, data = 0x7f4db82a76c0 <qt_meta_data_QObject>, static_metacall = 0x7f4db8111c40 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x5582e2c56310}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f4db82aa780 <qt_meta_stringdata_Qt>, data = 0x7f4db82a7900 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x5582e1971280 <QObject::staticMetaObject>}, stringdata = 0x7f4dba0f7720 <qt_meta_stringdata_KDBusService>, data = 0x7f4dba0f66c0 <qt_meta_data_KDBusService>, static_metacall = 0x7f4dba0ecea0 <KDBusService::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d = std::unique_ptr<class KDBusServicePrivate> = {get() = 0x5582e2c768d0}}
```

#15 0x00007f4db57b5b05 in org_kde_kwin_appmenu_release (org_kde_kwin_appmenu=0x5582ec1fa5c0) at /usr/src/debug/plasma-integration-5.26.3/build/src/platformtheme/wayland-appmenu-client-protocol.h:180
#16 QtWayland::org_kde_kwin_appmenu::release() (this=0x5582ed23dcc0) at /usr/src/debug/plasma-integration-5.26.3/build/src/platformtheme/qwayland-appmenu.cpp:129
#17 KWaylandIntegration::shellSurfaceDestroyed(QWindow*) (this=<optimized out>, w=0x5582e486f220) at /usr/src/debug/plasma-integration-5.26.3/src/platformtheme/kwaylandintegration.cpp:168
#18 KWaylandIntegration::eventFilter(QObject*, QEvent*) (this=<optimized out>, watched=0x5582e486f220, event=<optimized out>) at /usr/src/debug/plasma-integration-5.26.3/src/platformtheme/kwaylandintegration.cpp:109

Is it 100% reproducible?

If so, does it stop happening if you remove the app menu titlebar button and reboot?

> Is it 100% reproducible?

No, it's not and I forgot to mention it in the report. Honestly, I could not reproduce it again today, which makes it look like some race condition or an unfortunate bit flip in my memory. :P

Ha, I came to the conclusion too early! 
It is 100% reproducible, I just need to toggle the Bluetooth on/off checkbox often and rapid enough in a row. 

> If so, does it stop happening if you remove the app menu titlebar button and reboot?
How can I do that?

I had assumed you added the app menu button to your window titlebars manually so you knew how to remove it. Was this assumption incorrect and your window titlebars don't in fact have a button on them you can use to open the menu structure?

Created attachment 153772 [details]
Screenshot: Titlebar (Dolphin)

(In reply to Nate Graham from comment #5)
> I had assumed you added the app menu button to your window titlebars manually so you knew how to remove it.

I got your wrong, I thought you talked about the applets. :)

> Was this assumption incorrect and your window titlebars don't in fact have a button on them you can use to open the menu structure?

I guess so. Please see the screenshot in case of Dolphin. Also I wonder how window titlebars are connected to the panel / applet issue here.

Huh, no app menu. In that case these lines in the backtrace are extremely odd:

#15 0x00007f4db57b5b05 in org_kde_kwin_appmenu_release (org_kde_kwin_appmenu=0x5582ec1fa5c0) at /usr/src/debug/plasma-integration-5.26.3/build/src/platformtheme/wayland-appmenu-client-protocol.h:180
#16 QtWayland::org_kde_kwin_appmenu::release() (this=0x5582ed23dcc0) at /usr/src/debug/plasma-integration-5.26.3/build/src/platformtheme/qwayland-appmenu.cpp:129

Moving to plasma-integration.

Oddly enough, I cannot reproduce it anymore today. Thus closing for now.