SUMMARY
Running 5.20.5+p20.04+git20210131.0022-0 , I get a crash notification and when activated I get a message that the KDE crash handler closed unexpectedly

Running neon unstable, full updated.

Here's the backtrace:

Application: The KDE Crash Handler (drkonqi), signal: Segmentation fault

[New LWP 13282]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f808d024aff in __GI___poll (fds=0x7ffffe5d34e8, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f8089b742c0 (LWP 13218))]

Thread 2 (Thread 0x7f808804a700 (LWP 13282)):
#0  0x00007f808d024aff in __GI___poll (fds=0x7f8080005240, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f808bfa918e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f8080005240, timeout=<optimized out>, context=0x7f8080000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f8080000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f808bfa92c3 in g_main_context_iteration (context=0x7f8080000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f808d60afbb in QEventDispatcherGlib::processEvents (this=0x7f8080000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f808d5af1ab in QEventLoop::exec (this=this@entry=0x7f8088049cb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f808d3c9a12 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f808df34f4b in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f808d3cabac in QThreadPrivate::start (arg=0x7f808dfb8d80) at thread/qthread_unix.cpp:329
#9  0x00007f808c902609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f808d031293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f8089b742c0 (LWP 13218)):
[KCrash Handler]
#4  wl_proxy_marshal_constructor (proxy=0x0, opcode=0, interface=0x7f808bf4b640 <wl_surface_interface>) at ../src/wayland-client.c:829
#5  0x00007f808be64067 in QtWaylandClient::QWaylandDisplay::createSurface (this=<optimized out>, handle=handle@entry=0x5593cce289d0) at qwaylanddisplay.cpp:96
#6  0x00007f808be78e0a in QtWaylandClient::QWaylandSurface::QWaylandSurface (this=0x5593cce289d0, display=<optimized out>) at qwaylandsurface.cpp:50
#7  0x00007f808be6a8ba in QtWaylandClient::QWaylandWindow::initializeWlSurface (this=this@entry=0x5593cce05490) at qwaylandwindow.cpp:213
#8  0x00007f808be6c096 in QtWaylandClient::QWaylandWindow::QWaylandWindow (this=0x5593cce05490, window=0x5593cceb13d0, display=0x5593ccb46940) at qwaylandwindow.cpp:93
#9  0x00007f808be76f3d in QtWaylandClient::QWaylandShmWindow::QWaylandShmWindow (this=0x5593cce05490, window=<optimized out>, display=<optimized out>) at qwaylandshmwindow.cpp:52
#10 0x00007f808be54b79 in QtWaylandClient::QWaylandIntegration::createPlatformWindow (this=<optimized out>, window=0x5593cceb13d0) at qwaylandintegration.cpp:171
#11 0x00007f808d99c3f4 in QWindowPrivate::create(bool, unsigned long long) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#12 0x00007f808e2128b8 in QWidgetPrivate::create (this=this@entry=0x5593ccb700a0) at kernel/qwidget.cpp:1314
#13 0x00007f808e212ebe in QWidget::create (this=0x5593ccca46d0, window=<optimized out>, initializeWindow=<optimized out>, destroyOldWindow=<optimized out>) at kernel/qwidget.cpp:1179
#14 0x00007f808e22058b in QWidgetPrivate::setVisible (this=0x5593ccb700a0, visible=<optimized out>) at kernel/qwidget.cpp:8062
#15 0x00007f808e220966 in QWidget::setVisible (this=this@entry=0x5593ccca46d0, visible=visible@entry=true) at kernel/qwidget.cpp:8043
#16 0x00007f808e3e9cc8 in QDialog::setVisible (this=0x5593ccca46d0, visible=<optimized out>) at dialogs/qdialog.cpp:787
#17 0x00005593cc44e4c1 in (anonymous namespace)::openDrKonqiDialog () at ./src/main.cpp:54
#18 0x00005593cc44d8de in main (argc=<optimized out>, argv=<optimized out>) at ./src/main.cpp:219
[Inferior 1 (process 13218) detached]