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Tried a number of times with a random project and didn't get any crash. Possibly is project dependent? Does it crash with the same layout configurations and a simple project?

Giovanni Manghi wrote:

Tried a number of times with a random project and didn't get any crash. Possibly is project dependent? Does it crash with the same layout configurations and a simple project?

Just tried again with a different project (some of the files were the same though) and I got the crash. Last time I had gotten close to exhausting my memory, but this time I was only at about 60%. I'm using a different computer and version 3.6. Will test some more with this computer over the weekend. Here's the Stack trace:

Crash ID: ae19ac74d239e7b0a2fa23f4ca3b7aee161bf2fc

Stack Trace

QColorProfile::fromSRgb :
QVectorPath::convertToPainterPath :
QRasterPaintEngine::fillRect :
QRasterPaintEngine::drawImage :
QPainter::drawImage :
QgsShapeburstFillSymbolLayer::renderPolygon :
QgsFillSymbol::renderPolygonUsingLayer :
QgsFillSymbol::renderPolygon :
QgsSymbol::renderFeature :
QgsFeatureRenderer::renderFeature :
QgsInvertedPolygonRenderer::stopRender :
QgsVectorLayerLabelProvider::registerFeature :
QgsPaintEffectMetadata::widgetFunction :
QgsMapRendererCustomPainterJob::doRender :
QgsMapRendererCustomPainterJob::start :
QgsMapRendererCustomPainterJob::renderSynchronously :
QgsLayoutItemMap::drawMap :
QgsLayoutItemMap::paint :
QGraphicsScene::dragMoveEvent :
QGraphicsItem::dragMoveEvent :
QGraphicsEffectSource::draw :
QgsLayoutEffect::draw :
QGraphicsScene::drawItems :
QGraphicsScene::drawItems :
QGraphicsScene::render :
QgsLayoutExporter::renderRegion :
QgsLayoutExporter::renderPage :
QgsLayoutExporter::printPrivate :
QgsLayoutExporter::exportToPdf :
QgisApp::actionAddWcsLayer :
QMetaObject::activate :
QAction::activate :
QMenu::actionGeometry :
QMenu::actionGeometry :
QMenu::mouseReleaseEvent :
QWidget::event :
QMenu::event :
QApplicationPrivate::notify_helper :
QApplication::notify :
QgsApplication::notify :
QCoreApplication::notifyInternal2 :
QApplicationPrivate::sendMouseEvent :
QSizePolicy::QSizePolicy :
QSizePolicy::QSizePolicy :
QApplicationPrivate::notify_helper :
QApplication::notify :
QgsApplication::notify :
QCoreApplication::notifyInternal2 :
QGuiApplicationPrivate::processMouseEvent :
QWindowSystemInterface::sendWindowSystemEvents :
QEventDispatcherWin32::processEvents :
CallWindowProcW :
DispatchMessageW :
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: 10.0.17134

After a bit of testing, I think it has to do with inverted polygons with a shapeburst fill (which I'm using as a mask layer). Without the layer it works fine, but with it, there's the crash. I thought maybe the mask polygon was invalid or something, but I ran "check validity" and it was fine. Also, the export works without a problem if it's a simple fill in an inverted polygon. It seems like it's a bug related specifically with shapeburst fill and inverted polygons.