Rain stays bright after light source is removed with Vibrant Visuals

This happened with Vibrant Visuals enabled.

I've only seen this happen with the furnace so far. After I broke it, the actual light from the furnace was gone, but the rain surrounding where it used to be was still bright. It might have something to do with breaking the furnace while it was lit and not letting the flame die out, but right now I can't test that.