I'm still puzzled by the rotating 'thing' below the ancient pillars. It only happens at the ancient pillars and nowhere else. Using the debug cam to go below the surface to see for myself after the reports earlier in this thread.
Anyone any ideas what it is? graphical glitch or something else?
Someone suggested when devs add a sound, they can attach it to an object and move that object around to create an effect, and that is all this is.
Not the nicest answer really but seems realistic, especially since there's no way to observe it without using the debug cam.