This started just a few days ago, for no apparent reason. There's something wrong with my render distance for players. For example, while standing in Limsa, on the bench by the tree, I cannot see anyone over by the tree or the aetheryte unless I move closer, and people blink in and out of my render distance constantly, even while standing still. Doesn't matter how crowded the city is, even in the early morning, it's the same. My settings are at max, I haven't changed any settings since it started happening. I just logged in on Friday and it was like this. Before this, I could see to the other side of the plaza no problem, even during peak times. It's just really annoying when I'm standing there and people are blinking in and out, and I can't even tell if any of my friends are around unless I run a few feet, stop and stand and wait for everyone to load in, and then repeat. Anyone have any ideas?

Here is a quick gif of people popping in and out of existence.
https://gyazo.com/146de5f32af0e0cdab84f802b2f8c4de