(gdb) bt #0 0x00007ffff782c62e in QSortFilterProxyModelPrivate::index_to_iterator(QModelIndex const&) const (this=0x55555682a5f0, proxy_index=...) at itemmodels/qsortfilterproxymodel.cpp:203 #1 0x00007ffff7822e04 in QSortFilterProxyModel::parent(QModelIndex const&) const (this=0x555556829db0, child=...) at itemmodels/qsortfilterproxymodel.cpp:2010 #2 0x00007ffff6b8e0dc in QModelIndex::parent() const (this=0x555556b3f938) at ../../include/QtCore/../../src/corelib/itemmodels/qabstractitemmodel.h:438 #3 0x00007ffff6b8e0dc in QTreeView::drawRow(QPainter*, QStyleOptionViewItem const&, QModelIndex const&) const (this=this@entry=0x555556824d40, painter=painter@entry=0x7fffffffd0f8, option=..., index=...) at itemviews/qtreeview.cpp:1612 #4 0x00007ffff6b93279 in QTreeView::drawTree(QPainter*, QRegion const&) const (this=this@entry=0x555556824d40, painter=painter@entry=0x7fffffffd0f8, region=...) at itemviews/qtreeview.cpp:1506 #5 0x00007ffff6b9736c in QTreeView::paintEvent(QPaintEvent*) (this=0x555556824d40, event=0x7fffffffd6d0) at itemviews/qtreeview.cpp:1335 #6 0x00007ffff68d36b9 in QWidget::event(QEvent*) (this=this@entry=0x555556824d40, event=event@entry=0x7fffffffd6d0) at kernel/qwidget.cpp:9034 #7 0x00007ffff698b8f2 in QFrame::event(QEvent*) (this=this@entry=0x555556824d40, e=e@entry=0x7fffffffd6d0) at widgets/qframe.cpp:550 #8 0x00007ffff699540f in QAbstractScrollArea::viewportEvent(QEvent*) (this=this@entry=0x555556824d40, e=e@entry=0x7fffffffd6d0) at widgets/qabstractscrollarea.cpp:1221 #9 0x00007ffff6b266c2 in QAbstractItemView::viewportEvent(QEvent*) (this=this@entry=0x555556824d40, event=event@entry=0x7fffffffd6d0) at itemviews/qabstractitemview.cpp:1748 #10 0x00007ffff6b980a6 in QTreeView::viewportEvent(QEvent*) (this=0x555556824d40, event=0x7fffffffd6d0) at itemviews/qtreeview.cpp:1317 #11 0x00007ffff6995dd5 in QAbstractScrollAreaPrivate::viewportEvent(QEvent*) (event=, this=) at widgets/qabstractscrollarea_p.h:113 #12 0x00007ffff6995dd5 in QAbstractScrollAreaFilter::eventFilter(QObject*, QEvent*) (this=, o=, e=) at widgets/qabstractscrollarea_p.h:129 #13 0x00007ffff784feee in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) (receiver=receiver@entry=0x555556824730, event=event@entry=0x7fffffffd6d0) at kernel/qcoreapplication.cpp:1174 #14 0x00007ffff688a663 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x555555c9e1b0, receiver=receiver@entry=0x555556824730, e=e@entry=0x7fffffffd6d0) at kernel/qapplication.cpp:3718 #15 0x00007ffff6893a13 in QApplication::notify(QObject*, QEvent*) (this=0x7fffffffe2d0, receiver=0x555556824730, e=0x7fffffffd6d0) at kernel/qapplication.cpp:3685 #16 0x00007ffff78500d1 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=receiver@entry=0x555556824730, event=event@entry=0x7fffffffd6d0) at kernel/qcoreapplication.cpp:1048 #17 0x00007ffff68cbb99 in QCoreApplication::sendSpontaneousEvent(QObject*, QEvent*) (event=0x7fffffffd6d0, receiver=) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:237 #18 0x00007ffff68cbb99 in QWidgetPrivate::sendPaintEvent(QRegion const&) (this=this@entry=0x555556825250, toBePainted=...) at kernel/qwidget.cpp:5661 #19 0x00007ffff68cc2d5 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) (this=this@entry=0x555556825250, pdev=, rgn=..., offset=..., flags=flags@entry=36, sharedPainter=sharedPainter@entry=0x0, backingStore=) at kernel/qwidget.cpp:5601 #20 0x00007ffff689bf5e in QWidgetBackingStore::doSync() (this=this@entry=0x555556937890) at kernel/qwidgetbackingstore.cpp:1421 #21 0x00007ffff689c2f8 in QWidgetBackingStore::sync() (this=0x555556937890) at kernel/qwidgetbackingstore.cpp:1208 #22 0x00007ffff68baac1 in QWidgetPrivate::syncBackingStore() (this=this@entry=0x555556070410) at kernel/qwidget.cpp:1958 #23 0x00007ffff68d3be1 in QWidget::event(QEvent*) (this=this@entry=0x7fffffffe370, event=event@entry=0x555557b13dc0) at kernel/qwidget.cpp:9198 #24 0x00007ffff6a0d598 in QMainWindow::event(QEvent*) (this=0x7fffffffe370, event=0x555557b13dc0) at widgets/qmainwindow.cpp:1344 #25 0x0000555555697155 in Tiled::Internal::MainWindow::event(QEvent*) (this=0x7fffffffe370, event=0x555557b13dc0) at src/tiled/mainwindow.cpp:590 #26 0x00007ffff688a705 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x555555c9e1b0, receiver=receiver@entry=0x7fffffffe370, e=e@entry=0x555557b13dc0) at kernel/qapplication.cpp:3722 #27 0x00007ffff6893a13 in QApplication::notify(QObject*, QEvent*) (this=0x7fffffffe2d0, receiver=0x7fffffffe370, e=0x555557b13dc0) at kernel/qapplication.cpp:3685 #28 0x00007ffff78500d1 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=receiver@entry=0x7fffffffe370, event=event@entry=0x555557b13dc0) at kernel/qcoreapplication.cpp:1048 #29 0x00007ffff78562cf in QCoreApplication::sendEvent(QObject*, QEvent*) (event=0x555557b13dc0, receiver=0x7fffffffe370) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234 #30 0x00007ffff78562cf in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x555555c9e330) at kernel/qcoreapplication.cpp:1745 #31 0x00007ffff785694c in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1599 #32 0x00007ffff78ad84a in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x555555e09be0) at kernel/qeventdispatcher_glib.cpp:276 #33 0x00007ffff28ac368 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0 #34 0x00007ffff28ac5b1 in () at /usr/lib/libglib-2.0.so.0 #35 0x00007ffff28ac63e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #36 0x00007ffff78ad16e in QEventDispatcherGlib::processEvents(QFlags) (this=0x555555e1f0a0, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #37 0x00007ffff04bc32b in QPAEventDispatcherGlib::processEvents(QFlags) (this=0x555555e1f0a0, flags=...) at qeventdispatcher_glib.cpp:69 #38 0x00007ffff784e00f in QEventLoop::processEvents(QFlags) (this=this@entry=0x7fffffffe170, flags=..., flags@entry=...) at kernel/qeventloop.cpp:136 #39 0x00007ffff784e45d in QEventLoop::exec(QFlags) (this=this@entry=0x7fffffffe170, flags=flags@entry=...) at kernel/qeventloop.cpp:214 #40 0x00007ffff78582fe in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1336 #41 0x00007ffff6f2a784 in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1750 #42 0x00007ffff688a5e5 in QApplication::exec() () at kernel/qapplication.cpp:2905 #43 0x000055555568f5d3 in main(int, char**) (argc=1, argv=0x7fffffffe588) at src/tiled/main.cpp:428 (gdb)