Do not worry Kabe. I think you use Cinemaxwell normally too. That stufs shown in that thred appeared in my render too. Especially on objects exportrd from Allplan... So, MatadorLight survives me from this...
But in renders like these wonderful glasses, i think, Cinemaxwell is useful. When i did simple tests with primitives every thing was O.K. In complex scenes with many textures it appeard that stripes randomly (for me)

2x Intel QX6700, 4GB RAM, Quadro 1500, Win x64
Cinema 4D, Maxwell
www.allviz.cz