I'm having problems with textures after the 'Properly update properties from Backend to Frontend textures (http://code.qt.io/cgit/qt/qt3d.git/commit/?id=85f8e910fa484296afd19a4568ba939502d562f7) on August 8. I've traced back the relevant commits and see that the problems start when this commit is enabled.

Attached are a couple of screenshots with and without this commit. In some cases the textured geometry is just a mess, in other cases the texture is simply missing, as with the text.