Render bug when using new BlendType.PostPP with <CanBeAffectedByOtherLights>true

Hi all,

Since the latest wave of fixes - including this new BlendType - were introduced, I've started looking at my planetary rings and weather mod, which makes heavy use of billboards for all the particle effects.

One problem though - when I'm rendering billboards that have <CanBeAffectedByOtherLights>true</CanBeAffectedByOtherLights>, they turn jet black and the rendering in general of the whole game goes wrong. See screenshot below:



Any ideas, or can this be fixed?

Thanks,

-Ed