Qt3D on Symbian: some textures are missing on N8

The following texture problem exists on N8 but not C7:

1. photoroom example: some pictures are visible on C7 but not N8
2. robo_bounce example: when switching from calculator to robot scene, the cube is missing texture on N8 but not on C7

The only difference between these two devices is that on C7 the apps are installed to the Menus root directory, on N8 they are installed to Menu/Applications sub directory. This might have caused the application unable to find texture resources.