7-k is the area. It is part of the old map that was changed with no warning. We have about 20 thralls now buried under the ground and walls and animal pen under the ground because of this change. Why no warning like you did when you added the camps? I have a screenshot but I don’t see a way to add it to posts.
It got answered here:
https://forums.funcom.com/t/part-of-my-base-went-undermesh-with-2-4/163021/25?u=narelle
Ya I got a vault and all the bottom of my major size base buried under sand.I did manage to built over it but it cost me a lot of time.But i’m not complaining the new update is great.