qtcreator crashes in design mode on arch linux running kde plasma

Hi,
I have not been able to use qtquick designer for any length of time without a crash.
I have attached a simple project created from the scroll app. Or would have done but system did not let me !!!
clicking the collapse icon, on the scrollview causes the crash.

Application: qtcreator (qtcreator), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe7a5c5fc80 (LWP 5478))]

Thread 18 (Thread 0x7fe725e9d700 (LWP 5603)):
#0 0x00007fe7a9fce184 in read () from /usr/lib/libpthread.so.0
#1 0x00007fe7a6dfd971 in ?? () from /usr/lib/libglib-2.0.so.0
#2 0x00007fe7a6e4e0b0 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3 0x00007fe7a6e4f4e6 in ?? () from /usr/lib/libglib-2.0.so.0
#4 0x00007fe7a6e4f62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5 0x00007fe7aa2b25c4 in QEventDispatcherGlib::processEvents (this=0x7fe70c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6 0x00007fe7aa25b58c in QEventLoop::exec (this=this@entry=0x7fe725e9cd80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7 0x00007fe7aa09f5c9 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8 0x00007fe7a9ac1b89 in ?? () from /usr/bin/../lib/qtcreator/../libQt5Qml.so.5
#9 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x5621323d4600) at thread/qthread_unix.cpp:361
#10 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 17 (Thread 0x7fe72569c700 (LWP 5597)):
#0 0x00007fe7a9fcbe8e in pthread_getspecific () from /usr/lib/libpthread.so.0
#1 0x00007fe7a6e2e051 in g_thread_self () from /usr/lib/libglib-2.0.so.0
#2 0x00007fe7a6e4f61f in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3 0x00007fe7aa2b25c4 in QEventDispatcherGlib::processEvents (this=0x7fe718005f20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4 0x00007fe7aa25b58c in QEventLoop::exec (this=this@entry=0x7fe72569bd80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5 0x00007fe7aa09f5c9 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6 0x00007fe7a9ac1b89 in ?? () from /usr/bin/../lib/qtcreator/../libQt5Qml.so.5
#7 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x56212afc35d0) at thread/qthread_unix.cpp:361
#8 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#9 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 16 (Thread 0x7fe7273fe700 (LWP 5592)):
#0 0x00007fe7a9fce184 in read () from /usr/lib/libpthread.so.0
#1 0x00007fe7a6dfd971 in ?? () from /usr/lib/libglib-2.0.so.0
#2 0x00007fe7a6e4e0b0 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3 0x00007fe7a6e4f4e6 in ?? () from /usr/lib/libglib-2.0.so.0
#4 0x00007fe7a6e4f62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5 0x00007fe7aa2b25c4 in QEventDispatcherGlib::processEvents (this=0x7fe714000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6 0x00007fe7aa25b58c in QEventLoop::exec (this=this@entry=0x7fe7273fdd80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7 0x00007fe7aa09f5c9 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8 0x00007fe7a9ac1b89 in ?? () from /usr/bin/../lib/qtcreator/../libQt5Qml.so.5
#9 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x56212b1552e0) at thread/qthread_unix.cpp:361
#10 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 15 (Thread 0x7fe727fff700 (LWP 5582)):
#0 0x00007fe7a9d40c21 in poll () from /usr/lib/libc.so.6
#1 0x00007fe7a6e4f540 in ?? () from /usr/lib/libglib-2.0.so.0
#2 0x00007fe7a6e4f62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3 0x00007fe7aa2b25c4 in QEventDispatcherGlib::processEvents (this=0x7fe71c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4 0x00007fe7aa25b58c in QEventLoop::exec (this=this@entry=0x7fe727ffed80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5 0x00007fe7aa09f5c9 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6 0x00007fe7a9ac1b89 in ?? () from /usr/bin/../lib/qtcreator/../libQt5Qml.so.5
#7 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x562129f7a0e0) at thread/qthread_unix.cpp:361
#8 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#9 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 14 (Thread 0x7fe740fba700 (LWP 5581)):
#0 0x00007fe7a9fcaafc in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1 0x00007fe7aa0a6adc in QWaitConditionPrivate::wait (deadline=..., this=0x562129ea1da0) at thread/qwaitcondition_unix.cpp:146
#2 QWaitCondition::wait (this=<optimized out>, mutex=0x562124f5b178, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3 0x00007fe7aa0a6bca in QWaitCondition::wait (this=this@entry=0x562124f5b180, mutex=mutex@entry=0x562124f5b178, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4 0x00007fe7aafff0e6 in QFileInfoGatherer::run (this=0x562124f5b168) at dialogs/qfileinfogatherer.cpp:251
#5 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x562124f5b168) at thread/qthread_unix.cpp:361
#6 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#7 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 13 (Thread 0x7fe741ffb700 (LWP 5580)):
#0 0x00007fe7a9d40c21 in poll () from /usr/lib/libc.so.6
#1 0x00007fe7a6e4f540 in ?? () from /usr/lib/libglib-2.0.so.0
#2 0x00007fe7a6e4f62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3 0x00007fe7aa2b25c4 in QEventDispatcherGlib::processEvents (this=0x7fe72c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4 0x00007fe7aa25b58c in QEventLoop::exec (this=this@entry=0x7fe741ffad80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5 0x00007fe7aa09f5c9 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6 0x00007fe7a9ac1b89 in ?? () from /usr/bin/../lib/qtcreator/../libQt5Qml.so.5
#7 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x562129e68d20) at thread/qthread_unix.cpp:361
#8 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#9 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 12 (Thread 0x7fe7427fc700 (LWP 5579)):
#0 0x00007fe7a9fcaafc in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1 0x00007fe7aa0a6adc in QWaitConditionPrivate::wait (deadline=..., this=0x562129cfaf50) at thread/qwaitcondition_unix.cpp:146
#2 QWaitCondition::wait (this=<optimized out>, mutex=0x5621252e6978, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3 0x00007fe7aa0a6bca in QWaitCondition::wait (this=this@entry=0x5621252e6980, mutex=mutex@entry=0x5621252e6978, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4 0x00007fe7aafff0e6 in QFileInfoGatherer::run (this=0x5621252e6968) at dialogs/qfileinfogatherer.cpp:251
#5 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x5621252e6968) at thread/qthread_unix.cpp:361
#6 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#7 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 11 (Thread 0x7fe743fff700 (LWP 5526)):
#0 0x00007fe7a9fcaafc in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1 0x00007fe7aa0a6adc in QWaitConditionPrivate::wait (deadline=..., this=0x562125f60c00) at thread/qwaitcondition_unix.cpp:146
#2 QWaitCondition::wait (this=<optimized out>, mutex=0x562124feb150, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3 0x00007fe7aa0a6bca in QWaitCondition::wait (this=0x562124feb158, mutex=0x562124feb150, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4 0x00007fe779a3dd2f in ?? () from /usr/lib/qtcreator/plugins/libQmlJSEditor.so
#5 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x562124feb140) at thread/qthread_unix.cpp:361
#6 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#7 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 10 (Thread 0x7fe742ffd700 (LWP 5521)):
#0 0x00007fe7a9fcaef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1 0x00007fe7aa0a6a59 in QWaitConditionPrivate::wait_relative (this=0x7fe7300039a0, deadline=...) at thread/qwaitcondition_unix.cpp:136
#2 QWaitConditionPrivate::wait (deadline=..., this=0x7fe7300039a0) at thread/qwaitcondition_unix.cpp:144
#3 QWaitCondition::wait (this=<optimized out>, mutex=0x562123e099e0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#4 0x00007fe7aa0a6b97 in QWaitCondition::wait (this=this@entry=0x7fe7300037e0, mutex=mutex@entry=0x562123e099e0, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209
#5 0x00007fe7aa0a4bb4 in QThreadPoolThread::run (this=0x7fe7300037d0) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:240
#6 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x7fe7300037d0) at thread/qthread_unix.cpp:361
#7 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#8 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 9 (Thread 0x7fe752fbe700 (LWP 5489)):
#0 0x00007fe7a9d40c21 in poll () from /usr/lib/libc.so.6
#1 0x00007fe7a6e4f540 in ?? () from /usr/lib/libglib-2.0.so.0
#2 0x00007fe7a6e4f62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3 0x00007fe7aa2b25c4 in QEventDispatcherGlib::processEvents (this=0x7fe744000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4 0x00007fe7aa25b58c in QEventLoop::exec (this=this@entry=0x7fe752fbdd80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5 0x00007fe7aa09f5c9 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6 0x00007fe7a9ac1b89 in ?? () from /usr/bin/../lib/qtcreator/../libQt5Qml.so.5
#7 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x562124db66a0) at thread/qthread_unix.cpp:361
#8 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#9 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7fe753fff700 (LWP 5488)):
#0 0x00007fe7a6dfd424 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1 0x00007fe7a6e4edfd in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2 0x00007fe7a6e4f466 in ?? () from /usr/lib/libglib-2.0.so.0
#3 0x00007fe7a6e4f62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4 0x00007fe7aa2b25c4 in QEventDispatcherGlib::processEvents (this=0x7fe74c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5 0x00007fe7aa25b58c in QEventLoop::exec (this=this@entry=0x7fe753ffed80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6 0x00007fe7aa09f5c9 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7 0x00007fe7a9ac1b89 in ?? () from /usr/bin/../lib/qtcreator/../libQt5Qml.so.5
#8 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x5621248953a0) at thread/qthread_unix.cpp:361
#9 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7fe760dc2700 (LWP 5487)):
#0 0x00007fe7a9d40c21 in poll () from /usr/lib/libc.so.6
#1 0x00007fe7a6e4f540 in ?? () from /usr/lib/libglib-2.0.so.0
#2 0x00007fe7a6e4f62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3 0x00007fe7aa2b25c4 in QEventDispatcherGlib::processEvents (this=0x7fe754003300, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4 0x00007fe7aa25b58c in QEventLoop::exec (this=this@entry=0x7fe760dc1da0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5 0x00007fe7aa09f5c9 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x5621243ee840) at thread/qthread_unix.cpp:361
#7 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#8 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7fe7615c3700 (LWP 5486)):
#0 0x00007fe7a9d40c21 in poll () from /usr/lib/libc.so.6
#1 0x00007fe7a6e4f540 in ?? () from /usr/lib/libglib-2.0.so.0
#2 0x00007fe7a6e4f62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3 0x00007fe7aa2b25c4 in QEventDispatcherGlib::processEvents (this=0x7fe758000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4 0x00007fe7aa25b58c in QEventLoop::exec (this=this@entry=0x7fe7615c2da0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5 0x00007fe7aa09f5c9 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x56212415e350) at thread/qthread_unix.cpp:361
#7 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#8 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fe762655700 (LWP 5483)):
#0 0x00007fe7a9fce184 in read () from /usr/lib/libpthread.so.0
#1 0x00007fe7a6dfd971 in ?? () from /usr/lib/libglib-2.0.so.0
#2 0x00007fe7a6e4e0b0 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3 0x00007fe7a6e4f4e6 in ?? () from /usr/lib/libglib-2.0.so.0
#4 0x00007fe7a6e4f62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5 0x00007fe7aa2b25c4 in QEventDispatcherGlib::processEvents (this=0x7fe75c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6 0x00007fe7aa25b58c in QEventLoop::exec (this=this@entry=0x7fe762654da0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7 0x00007fe7aa09f5c9 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x562123e94590) at thread/qthread_unix.cpp:361
#9 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fe79a023700 (LWP 5482)):
#0 0x00007fe7a9d40c21 in poll () from /usr/lib/libc.so.6
#1 0x00007fe7a6e4f540 in ?? () from /usr/lib/libglib-2.0.so.0
#2 0x00007fe7a6e4f62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3 0x00007fe7aa2b25c4 in QEventDispatcherGlib::processEvents (this=0x7fe78c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4 0x00007fe7aa25b58c in QEventLoop::exec (this=this@entry=0x7fe79a022d70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5 0x00007fe7aa09f5c9 in QThread::exec (this=this@entry=0x7fe7a572a080 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6 0x00007fe7a56aeba6 in QDBusConnectionManager::run (this=0x7fe7a572a080 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#7 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x7fe7a572a080 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:361
#8 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#9 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fe79bfff700 (LWP 5481)):
#0 0x00007fe7a9fcaafc in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1 0x00007fe7a0825c24 in ?? () from /usr/lib/dri/i965_dri.so
#2 0x00007fe7a0825948 in ?? () from /usr/lib/dri/i965_dri.so
#3 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#4 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7fe7a450f700 (LWP 5480)):
#0 0x00007fe7a9d40c21 in poll () from /usr/lib/libc.so.6
#1 0x00007fe7a60b2630 in ?? () from /usr/lib/libxcb.so.1
#2 0x00007fe7a60b42db in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3 0x00007fe7a57dd96b in QXcbEventQueue::run (this=0x562122fff650) at qxcbeventqueue.cpp:225
#4 0x00007fe7aa0a09cc in QThreadPrivate::start (arg=0x562122fff650) at thread/qthread_unix.cpp:361
#5 0x00007fe7a9fc4a9d in start_thread () from /usr/lib/libpthread.so.0
#6 0x00007fe7a9d4bb23 in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7fe7a5c5fc80 (LWP 5478)):
[KCrash Handler]
#6 QObject::parent (this=0x0) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:408
#7 QWidget::parentWidget (this=0x0) at ../../include/QtWidgets/../../src/widgets/kernel/qwidget.h:860
#8 QWidget::window (this=0x0) at kernel/qwidget.cpp:4303
#9 0x00007fe779758deb in QmlDesigner::IconCheckboxItemDelegate::paint (this=0x562124666a10, painter=0x7ffc54be7280, styleOption=..., modelIndex=...) at /home/ken/src/qt-creator/src/plugins/qmldesigner/components/navigator/iconcheckboxitemdelegate.cpp:92
#10 0x00007fe7ab0a03f2 in QTreeView::drawRow (this=0x5621245c7090, painter=0x7ffc54be7280, option=..., index=...) at /usr/include/c++/8.2.1/bits/atomic_base.h:390
#11 0x00007fe7ab0a598f in QTreeView::drawTree (this=this@entry=0x5621245c7090, painter=painter@entry=0x7ffc54be7280, region=...) at ../../include/QtCore/../../src/corelib/tools/qarraydata.h:61
#12 0x00007fe7ab0a5f51 in QTreeViewPrivate::renderTreeToPixmapForAnimation (this=this@entry=0x5621245c77b0, rect=...) at itemviews/qtreeview.cpp:3241
#13 0x00007fe7ab0a7705 in QTreeViewPrivate::prepareAnimatedOperation (this=this@entry=0x5621245c77b0, item=item@entry=1, direction=direction@entry=QAbstractAnimation::Backward) at itemviews/qtreeview.cpp:3191
#14 0x00007fe7ab0a8930 in QTreeViewPrivate::collapse (this=this@entry=0x5621245c77b0, item=item@entry=1, emitSignal=emitSignal@entry=true) at itemviews/qtreeview.cpp:3145
#15 0x00007fe7ab0a8f86 in QTreeViewPrivate::expandOrCollapseItemAtPos (this=this@entry=0x5621245c77b0, pos=...) at itemviews/qtreeview.cpp:1383
#16 0x00007fe7ab0ab6fa in QTreeView::mousePressEvent (this=0x5621245c7090, event=0x7ffc54be7c70) at ../../include/QtCore/../../src/corelib/tools/qpoint.h:122
#17 0x00007fe7aae204bf in QWidget::event (this=this@entry=0x5621245c7090, event=event@entry=0x7ffc54be7c70) at kernel/qwidget.cpp:8884
#18 0x00007fe7aaec6a4f in QFrame::event (this=0x5621245c7090, e=0x7ffc54be7c70) at widgets/qframe.cpp:550
#19 0x00007fe7ab040e2c in QAbstractItemView::viewportEvent (this=this@entry=0x5621245c7090, event=event@entry=0x7ffc54be7c70) at itemviews/qabstractitemview.cpp:1750
#20 0x00007fe7ab0ab1cc in QTreeView::viewportEvent (this=0x5621245c7090, event=0x7ffc54be7c70) at itemviews/qtreeview.cpp:1318
#21 0x00007fe7aa25c60b in QCoreApplicationPrivate::sendThroughObjectEventFilters (event=<optimized out>, receiver=<optimized out>) at kernel/qcoreapplication.cpp:1187
#22 QCoreApplicationPrivate::sendThroughObjectEventFilters (receiver=receiver@entry=0x5621245c7cd0, event=event@entry=0x7ffc54be7c70) at kernel/qcoreapplication.cpp:1176
#23 0x00007fe7aaddee24 in QApplicationPrivate::notify_helper (this=this@entry=0x562122fe63f0, receiver=receiver@entry=0x5621245c7cd0, e=e@entry=0x7ffc54be7c70) at kernel/qapplication.cpp:3744
#24 0x00007fe7aade68b9 in QApplication::notify (this=<optimized out>, receiver=0x5621245c7cd0, e=0x7ffc54be7c70) at kernel/qapplication.cpp:3213
#25 0x00007fe7aa25c8f9 in QCoreApplication::notifyInternal2 (receiver=0x5621245c7cd0, event=0x7ffc54be7c70) at ../../include/QtCore/5.12.0/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:322
#26 0x00007fe7aade5b98 in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x5621245c7cd0, event=event@entry=0x7ffc54be7c70, alienWidget=alienWidget@entry=0x5621245c7cd0, nativeWidget=0x5621245c7250, buttonDown=buttonDown@entry=0x7fe7ab2f0330 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2699
#27 0x00007fe7aae3ad2d in QWidgetWindow::handleMouseEvent (this=0x562125acdd80, event=0x7ffc54be80f0) at /usr/include/c++/8.2.1/bits/atomic_base.h:390
#28 0x00007fe7aae3dc67 in QWidgetWindow::event (event=0x7ffc54be80f0, this=0x562125acdd80) at kernel/qwidgetwindow.cpp:281
#29 QWidgetWindow::event (this=0x562125acdd80, event=0x7ffc54be80f0) at kernel/qwidgetwindow.cpp:224
#30 0x00007fe7aaddee34 in QApplicationPrivate::notify_helper (this=this@entry=0x562122fe63f0, receiver=receiver@entry=0x562125acdd80, e=e@entry=0x7ffc54be80f0) at kernel/qapplication.cpp:3752
#31 0x00007fe7aade6671 in QApplication::notify (this=0x7ffc54be8740, receiver=0x562125acdd80, e=0x7ffc54be80f0) at kernel/qapplication.cpp:3499
#32 0x00007fe7aa25c8f9 in QCoreApplication::notifyInternal2 (receiver=0x562125acdd80, event=0x7ffc54be80f0) at ../../include/QtCore/5.12.0/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:322
#33 0x00007fe7aa7e59be in QGuiApplicationPrivate::processMouseEvent (e=0x562133ce5ce0) at kernel/qguiapplication.cpp:2102
#34 0x00007fe7aa7e6e26 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x562133ce5ce0) at kernel/qguiapplication.cpp:1837
#35 0x00007fe7aa7c075c in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1068
#36 0x00007fe7a57de99c in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#37 0x00007fe7a6e4da2f in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#38 0x00007fe7a6e4f5e9 in ?? () from /usr/lib/libglib-2.0.so.0
#39 0x00007fe7a6e4f62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#40 0x00007fe7aa2b25a9 in QEventDispatcherGlib::processEvents (this=0x562123058520, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#41 0x00007fe7aa25b58c in QEventLoop::exec (this=this@entry=0x7ffc54be84b0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#42 0x00007fe7aa263896 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#43 0x00005621223d14d4 in ?? ()
#44 0x00007fe7a9c74223 in __libc_start_main () from /usr/lib/libc.so.6
#45 0x00005621223d199e in ?? ()
[Inferior 1 (process 5478) detached]