Unity 5.0 Physically Based Shader renders white on standalone and web platforms

Hi Everyone.

I just had my first attempt at using Unity 5.0’s PBS shaders. I applied the standard shader setup and while everything looks great in the Editor, the object with the PBS shader applied renders either pure white or pure black.

Please see the screenshot below. The two objects with a standard bumped diffuse applied renders ok, but the two with PBS came out white.
Am I missing a setting somewhere?

Any and all help appreciated!

38300-pbs.jpg

The issue seems to be project specific. In my main project the bug does not occur. Luckily for me the problematic project was only a quick test and therefore if the bug does not recur it is irrelevant for my needs at least. I will shout if it happens again.

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