webenginewidget examples do not render correctly on embedded platform

I've brought up Qt 5.4.1 on an embedded platform. While the webengine quicknanobrowser example works great the webenginewidget examples do not render correctly. All I get are black blocks where I would expect to see the web page.

I can see that Qt 5.4.1 creates an OpenGL context which it attempts to use for rendering the widgets, but then tries to use a number of textures in glDrawElements() call without actually loading any texture data into them. Naturally the rendering fails with only black blocks being drawn.

The widgets examples work fine, so this issue looks to be specific to the webenginewidgets.

I also found the thread below on the Qt forums where a user states that the webenginewidgets are broken on embedded platforms for Qt 5.4.1, but I am not sure about the accuracy of this post.

https://forum.qt.io/topic/51257/imx6-qtwebengine-black-surfaces/4