[Hakarune]

Originally Posted by kovidgoyal

Here are the things you can try:

1) Update your graphics drivers
2) Run in Safe Mode
3) Turn of hardware acceleration for Qt WebEngine as described here: https://doc.qt.io/qt-5/qtwebengine-debugging.html

Graphics driver is the newest available, just double checked today and even tried to rollback as well, but none fixed it and disabling QT got it to finally open standalone, but won't open if launched from calibre still.