Lots of our apps that use QtWebEngine crash randomly on startup. If you are shipping 6.10.1 you may want to apply this patch https://codereview.qt-project.org/c/qt/qtwebengine/+/702860 It will be part of 6.10.2 but that's still a few weeks away and we're getting several daily bug reports about this so users are feeling the burn. Cheers, Albert