Crash ID: df5db5a03f47e61ea33e85c64f43607276bc1556 Stack Trace QgsSingleGeometryCheckError::QgsSingleGeometryCheckError : QgsFeaturePool::~QgsFeaturePool : CPLStringList::operator[] : QgsGeometryChecker::~QgsGeometryChecker : CPLStringList::operator[] : CPLStringList::size : CPLStringList::size : version : QDialog::closeEvent : QWidget::event : QApplicationPrivate::notify_helper : QApplication::notify : QgsApplication::notify : QCoreApplication::notifyInternal2 : QWidgetPrivate::close_helper : QSizePolicy::QSizePolicy : QSizePolicy::QSizePolicy : QApplicationPrivate::notify_helper : QApplication::notify : QgsApplication::notify : QCoreApplication::notifyInternal2 : QGuiApplicationPrivate::processCloseEvent : QWindowSystemInterface::sendWindowSystemEvents : QEventDispatcherWin32::processEvents : TranslateMessageEx : TranslateMessage : QEventDispatcherWin32::processEvents : qt_plugin_query_metadata : QEventLoop::exec : QCoreApplication::exec : main : BaseThreadInitThunk : RtlUserThreadStart : QGIS Info QGIS Version: 3.6.0-Noosa QGIS code revision: 58734527ab Compiled against Qt: 5.11.2 Running against Qt: 5.11.2 Compiled against GDAL: 2.4.0 Running against GDAL: 2.4.0 System Info CPU Type: x86_64 Kernel Type: winnt Kernel Version: 6.1.7601