QGIS crashes soon after opening raster heavy project with some vector layers with raster effects

[qgib]

Author Name: Ventsislav Nikolov (Ventsislav Nikolov)
Original Redmine Issue: 21674
Affected QGIS version: 3.6.0
Redmine category:project_loading/saving

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Crash ID: 36e5fff2c48e71d647c0581f2dd04e87de5752ed

Stack Trace

QTextOption::wrapMode :
QTextOption::wrapMode :
QVectorPath::convertToPainterPath :
QVectorPath::convertToPainterPath :
QVectorPath::convertToPainterPath :
QVectorPath::convertToPainterPath :
QRasterPaintEngine::rasterBuffer :
QRasterPaintEngine::rasterBuffer :
QRasterPaintEngine::fill :
QPaintEngineEx::stroke :
QRasterPaintEngine::stroke :
QPaintEngineEx::draw :
QPaintEngineEx::drawPath :
QPicture::exec :
QPicture::play :
QPainter::drawPicture :
QgsPaintEffect::sourceAsImage :
QgsGlowEffect::draw :
QgsEffectStack::draw :
QgsPaintEffect::end :
QgsEffectPainter::~QgsEffectPainter :
QgsLineSymbol::renderPolylineUsingLayer :
QgsLineSymbol::renderPolyline :
QgsSymbol::renderFeature :
QgsFeatureRenderer::renderFeature :
QgsVectorLayerLabelProvider::registerFeature :
QgsPaintEffectMetadata::widgetFunction :
QgsMapRendererCustomPainterJob::doRender :
QgsMapRendererCustomPainterJob::staticRender :
QgsMapRendererJob::renderingTime :
QThreadPoolPrivate::reset :
QThread::start :
BaseThreadInitThunk :
RtlUserThreadStart :

QGIS Info
QGIS Version: 3.6.0-Noosa
QGIS code revision: 5873452
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

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Please try with a new/clean profile.

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• priority_id was changed from Normal to High
• status_id was changed from Open to Feedback

[qgib]

Author Name: Ventsislav Nikolov (Ventsislav Nikolov)

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I forgot to mention that the problems were with an old project made with 2.18. Tried it with a clean profile, chrashes in the "main" QGIS window stopped, but continued when trying to edit settings in the layout window, which was also originally made with 2.18. Then I made a new layout from scratch and so far everything works ok and there are no crashes.

[elpaso]

If this is still an issue, please re-open and attach a sample project.