Crash when exiting Qt Creator after opening external help windows

Process 13107 stopped
* thread #1, name = 'CrBrowserMain', queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x8)
    frame #0: QtWidgets`QWidget::~QWidget() [inlined] QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data() const at qscopedpointer.h:140 [opt]
   137
   138 	    T *data() const Q_DECL_NOTHROW
   139 	    {
-> 140 	        return d;
   141 	    }
   142
   143 	    bool isNull() const Q_DECL_NOTHROW
(lldb) bt
* thread #1, name = 'CrBrowserMain', queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x8)
  * frame #0: QtWidgets`QWidget::~QWidget() [inlined] QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data() const at qscopedpointer.h:140 [opt]
    frame #1: QtWidgets`QWidget::~QWidget() [inlined] QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::pointer qGetPtrHelper<QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > >(QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > const&) at qglobal.h:999 [opt]
    frame #2: QtWidgets`QWidget::~QWidget() [inlined] QWidget::d_func(this=0x0000000000000000) at qwidget.h:131 [opt]
    frame #3: QtWidgets`QWidget::~QWidget(this=0x000000013473f080) at qwidget.cpp:1617 [opt]
    frame #4: QtWidgets`QWidget::~QWidget() [inlined] QWidget::~QWidget(this=0x000000013473f080) at qwidget.cpp:1571 [opt]
    frame #5: QtWidgets`QWidget::~QWidget(this=0x000000013473f080) at qwidget.cpp:1571 [opt]
    frame #6: QtCore`QObject::event(QEvent*) [inlined] qDeleteInEventHandler(o=0x000000013473f080) at qobject.cpp:4598 [opt]
    frame #7: QtCore`QObject::event(this=0x000000013473f080, e=<unavailable>) at qobject.cpp:1237 [opt]
    frame #8: QtWidgets`QWidget::event(this=0x000000013473f080, event=0x000000011edfa8b0) at qwidget.cpp:9266 [opt]
    frame #9: QtWidgets`QApplicationPrivate::notify_helper(this=<unavailable>, receiver=0x000000013473f080, e=0x000000011edfa8b0) at qapplication.cpp:3722 [opt]
    frame #10: QtWidgets`QApplication::notify(this=<unavailable>, receiver=<unavailable>, e=<unavailable>) at qapplication.cpp:3094 [opt]
    frame #11: QtCore`QCoreApplication::notifyInternal2(receiver=0x000000013473f080, event=0x000000011edfa8b0) at qcoreapplication.cpp:1018 [opt]
    frame #12: QtCore`QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) [inlined] QCoreApplication::sendEvent(receiver=<unavailable>, event=<unavailable>) at qcoreapplication.h:233 [opt]
    frame #13: QtCore`QCoreApplicationPrivate::sendPostedEvents(receiver=0x0000000000000000, event_type=52, data=0x0000000101e0ad90) at qcoreapplication.cpp:1678 [opt]
    frame #14: QtQuick`QQuickRenderControl::~QQuickRenderControl() [inlined] QQuickRenderControlPrivate::windowDestroyed(this=<unavailable>) at qquickrendercontrol.cpp:190 [opt]
    frame #15: QtQuick`QQuickRenderControl::~QQuickRenderControl(this=0x00000001346b7830) at qquickrendercontrol.cpp:181 [opt]
    frame #16: QtQuickWidgets`QQuickWidgetRenderControl::~QQuickWidgetRenderControl() [inlined] QQuickWidgetRenderControl::~QQuickWidgetRenderControl(this=0x00000001346b7830) at qquickwidget.cpp:79 [opt]
    frame #17: QtQuickWidgets`QQuickWidgetRenderControl::~QQuickWidgetRenderControl() [inlined] QQuickWidgetRenderControl::~QQuickWidgetRenderControl(this=0x00000001346b7830) at qquickwidget.cpp:79 [opt]
    frame #18: QtQuickWidgets`QQuickWidgetRenderControl::~QQuickWidgetRenderControl(this=0x00000001346b7830) at qquickwidget.cpp:79 [opt]
    frame #19: QtQuickWidgets`QQuickWidgetPrivate::~QQuickWidgetPrivate(this=0x00000001346e13a0) at qquickwidget.cpp:219 [opt]
    frame #20: QtQuickWidgets`QQuickWidgetPrivate::~QQuickWidgetPrivate() [inlined] QQuickWidgetPrivate::~QQuickWidgetPrivate(this=0x00000001346e13a0) at qquickwidget.cpp:209 [opt]
    frame #21: QtQuickWidgets`QQuickWidgetPrivate::~QQuickWidgetPrivate(this=0x00000001346e13a0) at qquickwidget.cpp:209 [opt]
    frame #22: QtCore`QObject::~QObject() [inlined] QScopedPointerDeleter<QObjectData>::cleanup(pointer=<unavailable>) at qscopedpointer.h:60 [opt]
    frame #23: QtCore`QObject::~QObject() at qscopedpointer.h:107 [opt]
    frame #24: QtCore`QObject::~QObject() [inlined] QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::~QScopedPointer() at qscopedpointer.h:105 [opt]
    frame #25: QtCore`QObject::~QObject(this=0x00000001346e1330) at qobject.cpp:1032 [opt]
    frame #26: QtWidgets`QWidget::~QWidget(this=0x00000001346e1330) at qwidget.cpp:1733 [opt]
    frame #27: QtWebEngineWidgets`QtWebEngineCore::RenderWidgetHostViewQtDelegateWidget::~RenderWidgetHostViewQtDelegateWidget() [inlined] QtWebEngineCore::RenderWidgetHostViewQtDelegateWidget::~RenderWidgetHostViewQtDelegateWidget(this=<unavailable>) at render_widget_host_view_qt_delegate_widget.h:51 [opt]
    frame #28: QtWebEngineWidgets`QtWebEngineCore::RenderWidgetHostViewQtDelegateWidget::~RenderWidgetHostViewQtDelegateWidget() [inlined] QtWebEngineCore::RenderWidgetHostViewQtDelegateWidget::~RenderWidgetHostViewQtDelegateWidget(this=<unavailable>) at render_widget_host_view_qt_delegate_widget.h:51 [opt]
    frame #29: QtWebEngineWidgets`QtWebEngineCore::RenderWidgetHostViewQtDelegateWidget::~RenderWidgetHostViewQtDelegateWidget(this=0x00000001346e1330) at render_widget_host_view_qt_delegate_widget.h:51 [opt]
    frame #30: QtWebEngineCore`QtWebEngineCore::RenderWidgetHostViewQt::~RenderWidgetHostViewQt() [inlined] std::__1::default_delete<QtWebEngineCore::RenderWidgetHostViewQtDelegate>::operator(__ptr=<unavailable>)(QtWebEngineCore::RenderWidgetHostViewQtDelegate*) const at memory:2537 [opt]
    frame #31: QtWebEngineCore`QtWebEngineCore::RenderWidgetHostViewQt::~RenderWidgetHostViewQt() [inlined] std::__1::unique_ptr<QtWebEngineCore::RenderWidgetHostViewQtDelegate, std::__1::default_delete<QtWebEngineCore::RenderWidgetHostViewQtDelegate> >::reset(QtWebEngineCore::RenderWidgetHostViewQtDelegate*) at memory:2736 [opt]
    frame #32: QtWebEngineCore`QtWebEngineCore::RenderWidgetHostViewQt::~RenderWidgetHostViewQt() [inlined] std::__1::unique_ptr<QtWebEngineCore::RenderWidgetHostViewQtDelegate, std::__1::default_delete<QtWebEngineCore::RenderWidgetHostViewQtDelegate> >::~unique_ptr() at memory:2704 [opt]
    frame #33: QtWebEngineCore`QtWebEngineCore::RenderWidgetHostViewQt::~RenderWidgetHostViewQt() [inlined] std::__1::unique_ptr<QtWebEngineCore::RenderWidgetHostViewQtDelegate, std::__1::default_delete<QtWebEngineCore::RenderWidgetHostViewQtDelegate> >::~unique_ptr() at memory:2704 [opt]
    frame #34: QtWebEngineCore`QtWebEngineCore::RenderWidgetHostViewQt::~RenderWidgetHostViewQt(this=0x000000013ba5e000) at render_widget_host_view_qt.cpp:301 [opt]
    frame #35: QtWebEngineCore`QtWebEngineCore::RenderWidgetHostViewQt::~RenderWidgetHostViewQt() [inlined] QtWebEngineCore::RenderWidgetHostViewQt::~RenderWidgetHostViewQt(this=0x000000013ba5e000) at render_widget_host_view_qt.cpp:293 [opt]
    frame #36: QtWebEngineCore`QtWebEngineCore::RenderWidgetHostViewQt::~RenderWidgetHostViewQt(this=0x000000013ba5e000) at render_widget_host_view_qt.cpp:293 [opt]
    frame #37: QtWebEngineCore`::Destroy() at render_widget_host_impl.cc:1685 [opt]
    frame #38: QtWebEngineCore`::ShutdownAndDestroy() at render_view_host_impl.cc:779 [opt]
    frame #39: QtWebEngineCore`::ReleaseRenderViewHostRef() at frame_tree.cc:365 [opt]
    frame #40: QtWebEngineCore`::~RenderFrameHostImpl() at render_frame_host_impl.cc:442 [opt]
    frame #41: QtWebEngineCore`::~RenderFrameHostImpl() [inlined] ~RenderFrameHostImpl at render_frame_host_impl.cc:393 [opt]
    frame #42: QtWebEngineCore`::~RenderFrameHostImpl() at render_frame_host_impl.cc:393 [opt]
    frame #43: QtWebEngineCore`::~RenderFrameHostManager() [inlined] operator() at memory:2537 [opt]
    frame #44: QtWebEngineCore`::~RenderFrameHostManager() [inlined] reset at memory:2736 [opt]
    frame #45: QtWebEngineCore`::~RenderFrameHostManager() [inlined] ~unique_ptr at memory:2704 [opt]
    frame #46: QtWebEngineCore`::~RenderFrameHostManager() [inlined] ~unique_ptr at memory:2704 [opt]
    frame #47: QtWebEngineCore`::~RenderFrameHostManager() at render_frame_host_manager.cc:84 [opt]
    frame #48: QtWebEngineCore`::~FrameTreeNode() at frame_tree_node.cc:138 [opt]
    frame #49: QtWebEngineCore`::~FrameTree() at frame_tree.cc:116 [opt]
    frame #50: QtWebEngineCore`::~WebContentsImpl() at web_contents_impl.cc:582 [opt]
    frame #51: QtWebEngineCore`::~WebContentsImpl() [inlined] ~WebContentsImpl at web_contents_impl.cc:483 [opt]
    frame #52: QtWebEngineCore`::~WebContentsImpl() at web_contents_impl.cc:483 [opt]
    frame #53: QtWebEngineCore`QtWebEngineCore::WebContentsAdapterPrivate::~WebContentsAdapterPrivate() [inlined] std::__1::default_delete<content::WebContents>::operator(__ptr=<unavailable>)(content::WebContents*) const at memory:2537 [opt]
    frame #54: QtWebEngineCore`QtWebEngineCore::WebContentsAdapterPrivate::~WebContentsAdapterPrivate() [inlined] std::__1::unique_ptr<content::WebContents, std::__1::default_delete<content::WebContents> >::reset(content::WebContents*) at memory:2736 [opt]
    frame #55: QtWebEngineCore`QtWebEngineCore::WebContentsAdapterPrivate::~WebContentsAdapterPrivate(this=0x0000000134788aa0) at web_contents_adapter.cpp:360 [opt]
    frame #56: QtWebEngineCore`QtWebEngineCore::WebContentsAdapter::~WebContentsAdapter() [inlined] QtWebEngineCore::WebContentsAdapterPrivate::~WebContentsAdapterPrivate(this=0x0000000134788aa0) at web_contents_adapter.cpp:358 [opt]
    frame #57: QtWebEngineCore`QtWebEngineCore::WebContentsAdapter::~WebContentsAdapter() [inlined] QScopedPointerDeleter<QtWebEngineCore::WebContentsAdapterPrivate>::cleanup(pointer=0x0000000134788aa0) at qscopedpointer.h:60 [opt]
    frame #58: QtWebEngineCore`QtWebEngineCore::WebContentsAdapter::~WebContentsAdapter() at qscopedpointer.h:107 [opt]
    frame #59: QtWebEngineCore`QtWebEngineCore::WebContentsAdapter::~WebContentsAdapter() [inlined] QScopedPointer<QtWebEngineCore::WebContentsAdapterPrivate, QScopedPointerDeleter<QtWebEngineCore::WebContentsAdapterPrivate> >::~QScopedPointer() at qscopedpointer.h:105 [opt]
    frame #60: QtWebEngineCore`QtWebEngineCore::WebContentsAdapter::~WebContentsAdapter() [inlined] QtWebEngineCore::WebContentsAdapter::~WebContentsAdapter(this=0x0000000134788a80) at web_contents_adapter.cpp:400 [opt]
    frame #61: QtWebEngineCore`QtWebEngineCore::WebContentsAdapter::~WebContentsAdapter(this=0x0000000134788a80) at web_contents_adapter.cpp:399 [opt]
    frame #62: QtWebEngineWidgets`QWebEnginePagePrivate::~QWebEnginePagePrivate() [inlined] QtSharedPointer::ExternalRefCountData::destroy(this=<unavailable>) at qsharedpointer_impl.h:157 [opt]
    frame #63: QtWebEngineWidgets`QWebEnginePagePrivate::~QWebEnginePagePrivate() [inlined] QSharedPointer<QtWebEngineCore::WebContentsAdapter>::deref(dd=0x0000000134788a70) at qsharedpointer_impl.h:461 [opt]
    frame #64: QtWebEngineWidgets`QWebEnginePagePrivate::~QWebEnginePagePrivate() [inlined] QSharedPointer<QtWebEngineCore::WebContentsAdapter>::deref() at qsharedpointer_impl.h:456 [opt]
    frame #65: QtWebEngineWidgets`QWebEnginePagePrivate::~QWebEnginePagePrivate() [inlined] QSharedPointer<QtWebEngineCore::WebContentsAdapter>::~QSharedPointer() at qsharedpointer_impl.h:313 [opt]
    frame #66: QtWebEngineWidgets`QWebEnginePagePrivate::~QWebEnginePagePrivate() [inlined] QSharedPointer<QtWebEngineCore::WebContentsAdapter>::~QSharedPointer() at qsharedpointer_impl.h:313 [opt]
    frame #67: QtWebEngineWidgets`QWebEnginePagePrivate::~QWebEnginePagePrivate(this=<unavailable>) at qwebenginepage.cpp:250 [opt]
    frame #68: QtWebEngineWidgets`QWebEnginePagePrivate::~QWebEnginePagePrivate() [inlined] QWebEnginePagePrivate::~QWebEnginePagePrivate(this=0x00000001347888c0) at qwebenginepage.cpp:247 [opt]
    frame #69: QtWebEngineWidgets`QWebEnginePagePrivate::~QWebEnginePagePrivate(this=0x00000001347888c0) at qwebenginepage.cpp:247 [opt]
    frame #70: QtWebEngineWidgets`QWebEnginePage::~QWebEnginePage() [inlined] QScopedPointerDeleter<QWebEnginePagePrivate>::cleanup(pointer=<unavailable>) at qscopedpointer.h:60 [opt]
    frame #71: QtWebEngineWidgets`QWebEnginePage::~QWebEnginePage() at qscopedpointer.h:107 [opt]
    frame #72: QtWebEngineWidgets`QWebEnginePage::~QWebEnginePage() [inlined] QScopedPointer<QWebEnginePagePrivate, QScopedPointerDeleter<QWebEnginePagePrivate> >::~QScopedPointer() at qscopedpointer.h:105 [opt]
    frame #73: QtWebEngineWidgets`QWebEnginePage::~QWebEnginePage(this=0x0000000134788200) at qwebenginepage.cpp:835 [opt]
    frame #74: 0x0000000110e5081e libHelp.dylib`Help::Internal::WebEngineHelpPage::~WebEngineHelpPage() + 14
    frame #75: QtCore`QObjectPrivate::deleteChildren(this=0x00000001347883f0) at qobject.cpp:1992 [opt]
    frame #76: QtWidgets`QWidget::~QWidget(this=0x00000001347880a0) at qwidget.cpp:1709 [opt]
    frame #77: 0x0000000110e5650e libHelp.dylib`Help::Internal::WebEngineHelpViewer::~WebEngineHelpViewer() + 14
    frame #78: QtCore`QObjectPrivate::deleteChildren(this=0x000000013473f3c0) at qobject.cpp:1992 [opt]
    frame #79: QtWidgets`QWidget::~QWidget(this=0x000000013473f390) at qwidget.cpp:1709 [opt]
    frame #80: QtWidgets`QStackedWidget::~QStackedWidget() [inlined] QStackedWidget::~QStackedWidget(this=0x000000013473f390) at qstackedwidget.cpp:147 [opt]
    frame #81: QtWidgets`QStackedWidget::~QStackedWidget() [inlined] QStackedWidget::~QStackedWidget(this=0x000000013473f390) at qstackedwidget.cpp:146 [opt]
    frame #82: QtWidgets`QStackedWidget::~QStackedWidget(this=0x000000013473f390) at qstackedwidget.cpp:146 [opt]
    frame #83: QtCore`QObjectPrivate::deleteChildren(this=0x0000000134740420) at qobject.cpp:1992 [opt]
    frame #84: QtWidgets`QWidget::~QWidget(this=0x00000001347402f0) at qwidget.cpp:1709 [opt]
    frame #85: QtWidgets`QWidget::~QWidget() [inlined] QWidget::~QWidget(this=0x00000001347402f0) at qwidget.cpp:1571 [opt]
    frame #86: QtWidgets`QWidget::~QWidget(this=0x00000001347402f0) at qwidget.cpp:1571 [opt]
    frame #87: QtCore`QObjectPrivate::deleteChildren(this=0x000000013473fb40) at qobject.cpp:1992 [opt]
    frame #88: QtWidgets`QWidget::~QWidget(this=0x000000013473fb00) at qwidget.cpp:1709 [opt]
    frame #89: 0x000000010e0870fe libCore.dylib`Core::MiniSplitter::~MiniSplitter() + 14
    frame #90: QtCore`QObjectPrivate::deleteChildren(this=0x000000013473f1a0) at qobject.cpp:1992 [opt]
    frame #91: QtWidgets`QWidget::~QWidget(this=0x000000013473f080) at qwidget.cpp:1709 [opt]
    frame #92: 0x0000000110e3a4e8 libHelp.dylib`Help::Internal::HelpWidget::~HelpWidget() + 984
    frame #93: 0x0000000110e3a5ee libHelp.dylib`Help::Internal::HelpWidget::~HelpWidget() + 14
    frame #94: 0x0000000110e301cf libHelp.dylib`Help::Internal::HelpPlugin::aboutToShutdown() + 47
    frame #95: 0x00000001013db7c2 libExtensionSystem.4.5.0.dylib`ExtensionSystem::Internal::PluginManagerPrivate::loadPlugin(ExtensionSystem::PluginSpec*, ExtensionSystem::PluginSpec::State) + 674
    frame #96: 0x00000001013db430 libExtensionSystem.4.5.0.dylib`ExtensionSystem::Internal::PluginManagerPrivate::stopAll() + 240
    frame #97: 0x00000001013d4507 libExtensionSystem.4.5.0.dylib`ExtensionSystem::Internal::PluginManagerPrivate::shutdown() + 23
    frame #98: QtCore`QMetaObject::activate(QObject*, int, int, void**) [inlined] QtPrivate::QSlotObjectBase::call(this=<unavailable>, r=<unavailable>, a=0x00007fff5fbff050) at qobject_impl.h:101 [opt]
    frame #99: QtCore`QMetaObject::activate(sender=<unavailable>, signalOffset=<unavailable>, local_signal_index=<unavailable>, argv=<unavailable>) at qobject.cpp:3749 [opt]
    frame #100: QtCore`QCoreApplication::exec() [inlined] QCoreApplication::aboutToQuit(this=<unavailable>) at moc_qcoreapplication.cpp:249 [opt]
    frame #101: QtCore`QCoreApplication::exec() [inlined] QCoreApplicationPrivate::execCleanup(this=0x0000000101e0b260) at qcoreapplication.cpp:1311 [opt]
    frame #102: QtCore`QCoreApplication::exec() at qcoreapplication.cpp:1295 [opt]
    frame #103: Qt Creator`main(argc=<unavailable>, argv=<unavailable>) at main.cpp:549 [opt]
    frame #104: 0x00007fffcb6dc235 libdyld.dylib`start + 1
    frame #105: 0x00007fffcb6dc235 libdyld.dylib`start + 1