I am also experiencing this issue, but only in 14w11b, not 1.7.5. Half slabs are darker than full slabs and other blocks. Sometimes only one side of the half slab appears darker. This only occurs when smooth lighting is activated. Additionally, the space above the slab is NOT occupied. The bug occurs independently.
Zach C.
I am also experiencing this issue, but only in 14w11b, not 1.7.5. Half slabs are darker than full slabs and other blocks. Sometimes only one side of the half slab appears darker. This only occurs when smooth lighting is activated. Additionally, the space above the slab is NOT occupied. The bug occurs independently.