Game Mechanics: Zones have gone almost 95% dark.

[Wakichoto]

While traveling from Freeport to Butcherblock via boat, all of the lightning and rendering effects were working until I got near the Gfay zone line where some textures were completely black. I zoned into Gfay and couldn't see anything. I logged out, restarted my client, loaded back in and found my way back to butcherblock and now BB is completely black except for whenever thunder sounds happen and I get a flash of color over everything for a split second. Every texture seems to be almost completely shaded black now.

I haven't changed any of my color, graphics, etc settings. What could be causing this and how can I fix this? Screencap below.

https://i.imgur.com/0I9v7Mt.jpg

EDIT: Daytime hours seem to restore everything, what's going on with the night time hours?