(lldb) bt * thread #1: tid = 0x24922, 0x0000000102341815 QtWidgets`QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 3621, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x20) * frame #0: 0x0000000102341815 QtWidgets`QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 3621 frame #1: 0x0000000102341f0b QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 1227 frame #2: 0x00000001023419b7 QtWidgets`QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 4039 frame #3: 0x0000000102341f0b QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 1227 frame #4: 0x0000000102341d99 QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 857 frame #5: 0x0000000102341d99 QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 857 frame #6: 0x0000000102341d99 QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 857 frame #7: 0x0000000102341d99 QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 857 frame #8: 0x0000000102341d99 QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 857 frame #9: 0x00000001023419b7 QtWidgets`QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 4039 frame #10: 0x0000000102341f0b QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 1227 frame #11: 0x00000001023419b7 QtWidgets`QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 4039 frame #12: 0x0000000102341f0b QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 1227 frame #13: 0x00000001023419b7 QtWidgets`QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 4039 frame #14: 0x0000000102341f0b QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 1227 frame #15: 0x00000001023419b7 QtWidgets`QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 4039 frame #16: 0x0000000102341f0b QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 1227 frame #17: 0x00000001023419b7 QtWidgets`QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 4039 frame #18: 0x0000000102341f0b QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 1227 frame #19: 0x0000000102341d99 QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 857 frame #20: 0x0000000102341d99 QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 857 frame #21: 0x0000000102341d99 QtWidgets`QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 857 frame #22: 0x00000001023419b7 QtWidgets`QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) + 4039 frame #23: 0x0000000102314e95 QtWidgets`QWidgetBackingStore::doSync() + 4213 frame #24: 0x0000000102347fc6 QtWidgets`QWidget::event(QEvent*) + 2886 frame #25: 0x0000000102451811 QtWidgets`QMainWindow::event(QEvent*) + 929 frame #26: 0x0000000102308473 QtWidgets`QApplicationPrivate::notify_helper(QObject*, QEvent*) + 307 frame #27: 0x000000010230b766 QtWidgets`QApplication::notify(QObject*, QEvent*) + 8022 frame #28: 0x000000010379508c QtCore`QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) + 956 frame #29: 0x000000010637976e libqcocoa.dylib`QCocoaEventDispatcherPrivate::processPostedEvents() + 190 frame #30: 0x0000000106379fe1 libqcocoa.dylib`QCocoaEventDispatcherPrivate::postedEventsSourceCallback(void*) + 33 frame #31: 0x00007fff85e4ea01 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17 frame #32: 0x00007fff85e40b8d CoreFoundation`__CFRunLoopDoSources0 + 269 frame #33: 0x00007fff85e401bf CoreFoundation`__CFRunLoopRun + 927 frame #34: 0x00007fff85e3fbd8 CoreFoundation`CFRunLoopRunSpecific + 296 frame #35: 0x00007fff8816f56f HIToolbox`RunCurrentEventLoopInMode + 235 frame #36: 0x00007fff8816f1ee HIToolbox`ReceiveNextEventCommon + 179 frame #37: 0x00007fff8816f12b HIToolbox`_BlockUntilNextEventMatchingListInModeWithFilter + 71 frame #38: 0x00007fff8a82f8ab AppKit`_DPSNextEvent + 978 frame #39: 0x00007fff8a82ee58 AppKit`-[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 346 frame #40: 0x00007fff8a824af3 AppKit`-[NSApplication run] + 594 frame #41: 0x0000000106378f3a libqcocoa.dylib`QCocoaEventDispatcher::processEvents(QFlags) + 2266 frame #42: 0x0000000103791b2c QtCore`QEventLoop::exec(QFlags) + 412 frame #43: 0x000000010379496a QtCore`QCoreApplication::exec() + 346 frame #44: 0x00000001007dbb09 Scribus`mainApp(int, char**) + 90 frame #45: 0x00007fff8c1c85c9 libdyld.dylib`start + 1 frame #46: 0x00007fff8c1c85c9 libdyld.dylib`start + 1