WebEngineView flickers/breaks texture when rendering transparent layers

When rendering simple html files with transparent layers, sometimes WebEngineView either displays the view without the transparent layer or a texture with artifacts.

To reproduce the issue just run the attached qml file with qmlscene, load one of the two examples, and move the mouse around.

The issue is more likely to be reproduced if the window is full screen, or if the qmlscene is configured to run on an integrated GPU (e.g. Intel HD), but it also happens with dedicated GPUs.

Video attached shows the issue with Qt 6.7.2, and qmlscene running using an NVidia GPU.