After this morning's patch, I am now getting a strange visual pattern on all character models.

I've narrowed it down to a texture issue. If I turn the Textures setting to anything higher than Low, this issue comes up. If I leave it set to Low, the glitch goes away. I can have all other visuals set to Ultra, but Textures to Low and it's fine. I've disabled all addons, but this makes no difference.