Materials not rendering correctly

Some materials and effects from the example content do not render correctly on my laptop, running Fedora 23 and the open source mesa drivers. I do not have any performance issues, and everything else seems to be working. My laptop has an Intel core i7 processor and 8gb of ram. The laptop also has a discrete card, but running it with DRI_PRIME does nothing to fix these issues. I would prefer not to use the proprietary NVIDIA drivers if at all possible.

I have tried moving my unreal_projects folder to an ntfs file system, and that does nothing to solve the problem. Here is an example of the issue:

glxinfo | grep version:

server glx version string: 1.4
client glx version string: 1.4
GLX version: 1.4
OpenGL core profile version string: 3.3 (Core Profile) Mesa 11.1.0 (git-525f3c2)
OpenGL core profile shading language version string: 3.30
OpenGL version string: 3.0 Mesa 11.1.0 (git-525f3c2)
OpenGL shading language version string: 1.30
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.1.0 (git-525f3c2)
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00


VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
3D controller: NVIDIA Corporation GK208M [GeForce GT 740M]

Any help would be appreciated. Thanks!

It may be a driver bug. Could you please try to reproduce the same problem using vendor drivers?