Sprites/sector lightning is bugged [gzdoom-g2.1.pre-1159]

[Fritsy]

Got told to report a bug here, somethings wrong with the lighting affecting sprites on my laptop in zandronum 2.0 and gzdoom-g2.1.pre-1159-gfbefe13.
In some sectors they turn completely black (see screenshot, sunlust level 1) and some sectors turn completely black as well (in hellrevealed1, map02 for instance) even with gl_light_ambient set to 255
I'm using a laptop with win 7, i5 and an intel graphics HD 4000.

Screenshot black sprites: http://imgur.com/uhu4ptK
Screenshot black sectors: TBA