i have the same problem. I had been useing a torch in my inv as a light source... after this last patch, it stopoed working as a light source.. Now i have to summon a lighting bug bubble thing (druid) and put it in my ranged slot as a light now.
so, you might want to try a differant light source. I heard that the beetle eyes are still working as lights, but i guess they put out all the torches..