Over the past few months I've been having a rather strange issue where anything and everything affected by or causing a glow/shine effect has screwed up lighting. I have no idea what causes this.

Here's some examples:

http://steamcommunity.com/profiles/76561198049747486/screenshot/45284840...
(MS helmet has awkward lighting, BTS is 'blacked out')

http://steamcommunity.com/profiles/76561198049747486/screenshot/45284840...
(Wyvern Scale helmet and Grey Owlite shield are 'blacked out'; strangely, the glow effects remain)

http://cloud.steampowered.com/ugc/595827150661082361/C844F64EB007827BF47...
(Snarbolax/Vog armor glows make the ground and some environment obstacles to have strange lighting, suddenly darkening or having the orange effect on 'squares' of the ground whenever I move, sometimes in a flashing on/off fashion)

http://steamcommunity.com/profiles/76561198049747486/screenshot/59582849...
(The glow affecting surroundings it normally wouldn't)

http://steamcommunity.com/profiles/76561198049747486/screenshot/59582715...
(Look at the crystal blocks. The graviton bomb effect on the right is normal, ignore that.)

Something of note is that some obstacles and equips are 'blacked out' regardless if I'm wearing a glow-causing item or not, but the discolorations of surroundings only occur with them on. Additionally, anything that 'shines' like the crystal blocks works just like everything else when affected by a glow, flashing and constantly changing the position of the shine.