Somewhat with Blender on Mac OS I managed to create 6 NAN objects and when on a visible layer always render the scene black when only using a lamp as light.
World and mesh lights illuminate the scene.
JA12 pointed out the NaN bug.
To solve it all objects that share the data (6 objects) have to be selected and the via Alt G reset. Then rendering works fine.
I have no recollection how I created this 3 piece circular pattern too or set the translation data to NaN.