Generation happens at two distances

[Pilvinen]

Distance 1:
Close range, seems to be in line with the View Distance.

Distance 2:
Maybe 10x the distance it should be happening on. But not consistently. It's very random looking. I just notice that really really far away there are a couple of chunks being generated. If I want to make that area generate I have to travel a long time to get close enough for the regular generation to happen.

Seems to be related to frustum edges.

Distance at which strange generation is happening:

The same hill near the center of the screen showing how close I needed to get before actual generation started: