Hey yall! I posted this on reddit but it didn't get any responses except for one, who is also having the same problem as me.
On the map, I've been trying to find the third monument, on the left, at the top of the map (pictured). I've cleared every single nook and cranny, but I cannot find ANYTHING. I still get the moving black tendrils that go away when you enter the area (only for the top part of the map).
I need to find this one, because I cannot progress any further until I find this one, that will unlock the other areas.
Anyone have the same problem? and possibly a solution? ☹️