On maemo device, launch the "photobrowser" example, click on a picture, it should show full screen; click again, it goes back. However if the pictures are rotated to some specific angle, the picture might be missing after click, and user won't be able to return to the 3D view by clicking again. It is possibly caused by the z-position of the picture is outside the scope of viewport.

Originally from Internal Jira: QT-4979