Created attachment 145707 [details] Full crash report SUMMARY Maybe a Qt bug? STEPS TO REPRODUCE 1. Changed some times at the "connection" tab of the "proxy" settings 2. Switched the KCM OBSERVED RESULT Systemsettings crashed: ``` Thread 1 (Thread 0x7f8a538d99c0 (LWP 16495)): [KCrash Handler] #4 0xfffffffffffffff0 in ?? () #5 0x00007f8a5874f19e in QtPrivate::QSlotObjectBase::call (a=0x7ffdc621d090, r=0x55d1655f7540, this=0x55d165610870) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398 #6 doActivate<false> (sender=0x55d16560cf10, signal_index=9, argv=0x7ffdc621d090) at kernel/qobject.cpp:3886 #7 0x00007f8a58748567 in QMetaObject::activate (sender=sender@entry=0x55d16560cf10, m=m@entry=0x7f8a59847600 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffdc621d090) at kernel/qobject.cpp:3946 #8 0x00007f8a59427fb6 in QAbstractButton::clicked (this=this@entry=0x55d16560cf10, _t1=<optimized out>) at .moc/moc_qabstractbutton.cpp:308 #9 0x00007f8a594281de in QAbstractButtonPrivate::emitClicked (this=0x55d16560cf50) at widgets/qabstractbutton.cpp:415 #10 0x00007f8a594296b3 in QAbstractButtonPrivate::click (this=0x55d16560cf50) at widgets/qabstractbutton.cpp:408 #11 0x00007f8a59429875 in QAbstractButton::mouseReleaseEvent (this=0x55d16560cf10, e=0x7ffdc621d650) at widgets/qabstractbutton.cpp:1044 #12 0x00007f8a59372cf6 in QWidget::event (this=0x55d16560cf10, event=0x7ffdc621d650) at kernel/qwidget.cpp:8664 #13 0x00007f8a5942aaa3 in QAbstractButton::event (this=this@entry=0x55d16560cf10, e=e@entry=0x7ffdc621d650) at widgets/qabstractbutton.cpp:1001 #14 0x00007f8a594ce0d3 in QPushButton::event (this=0x55d16560cf10, e=0x7ffdc621d650) at widgets/qpushbutton.cpp:709 #15 0x00007f8a5932fdc3 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x55d16560cf10, e=0x7ffdc621d650) at kernel/qapplication.cpp:3632 #16 0x00007f8a59338e77 in QApplication::notify(QObject*, QEvent*) () at kernel/qapplication.cpp:3076 #17 0x00007f8a5871817a in QCoreApplication::notifyInternal2 (receiver=0x55d16560cf10, event=0x7ffdc621d650) at ../../include/QtCore/5.15.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:332 #18 0x00007f8a593380a7 in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x55d16560cf10, event=event@entry=0x7ffdc621d650, alienWidget=alienWidget@entry=0x55d16560cf10, nativeWidget=0x55d165904170, buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2614 #19 0x00007f8a5938ded4 in QWidgetWindow::handleMouseEvent (this=0x55d1658a5d40, event=0x7ffdc621dad0) at /usr/include/c++/9/bits/atomic_base.h:413 #20 0x00007f8a593911f4 in QWidgetWindow::event (event=0x7ffdc621dad0, this=0x55d1658a5d40) at kernel/qwidgetwindow.cpp:300 #21 QWidgetWindow::event (this=0x55d1658a5d40, event=0x7ffdc621dad0) at kernel/qwidgetwindow.cpp:239 #22 0x00007f8a5932fdc3 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x55d1658a5d40, e=0x7ffdc621dad0) at kernel/qapplication.cpp:3632 #23 0x00007f8a59338bb8 in QApplication::notify(QObject*, QEvent*) () at kernel/qapplication.cpp:3156 #24 0x00007f8a5871817a in QCoreApplication::notifyInternal2 (receiver=0x55d1658a5d40, event=0x7ffdc621dad0) at ../../include/QtCore/5.15.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:332 #25 0x00007f8a58c384d8 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at kernel/qguiapplication.cpp:2282 #26 0x00007f8a58c39b45 in QGuiApplicationPrivate::processWindowSystemEvent (e=0x7f8a4c00af40) at kernel/qguiapplication.cpp:2002 #27 0x00007f8a58c117ac in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:1169 #28 0x00007f8a55d3fd44 in userEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib/x86_64-linux-gnu/libQt5WaylandClient.so.5 #29 0x00007f8a561ec17d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #30 0x00007f8a561ec400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #31 0x00007f8a561ec4a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #32 0x00007f8a587729d2 in QEventDispatcherGlib::processEvents (this=0x55d16536abf0, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #33 0x00007f8a58716c7b in QEventLoop::exec (this=this@entry=0x7ffdc621de70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141 #34 0x00007f8a5871ee24 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121 #35 0x000055d163a2cef9 in main (argc=<optimized out>, argv=<optimized out>) at ./app/main.cpp:183 ``` SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE Neon Testing KDE Plasma Version: 5.23.90 KDE Frameworks Version: 5.91.0 Qt Version: 5.15.3 ADDITIONAL INFORMATION Wayland, VBox