Lighting glitch on all devices after 1.2.1 patch

On all my devices (console, mobile, and pc) I am getting a lighting glitch where shadows are extremely dark where blocks intersect (in corners) particularly when in a cave or enclosed space at lower levels beneath the surface. Also general brightness underground is extremely low even with "brightness" setting and device brightness at max. Blocks around torches are also almost black with shadow. Only noticed after the 1.2.1 patch meant to fix bugs.