Like the title says, a specific set of rocks at the quarry near Nadbor dissapear when walking closer. I haven't been able to reach this area again to see if this keeps happening. When getting even closer the rocks appear again. Attached are the rocks viewed at 3 different distances (I didn't think to make a picture of when they faded in again, but 2 of the screenshots are close to each other, so that should be the point of disappearance.)