While playing around with the concrete base from this mod and the ground pylon from KAS I noticed that you can only have one object attached to the ground at once, or the other one become non static and will move when anything pushes against it.

Steps to reproduce:

1. Load game with concrete base and another item that attaches to the ground ( possibly another concrete base).
2. Take one of the objects and attach it to the ground. Walk against it and it won't move.
3. Take the next object and attach it to the ground. Walk against it and it won't move.
4. Walk against the object placed in step 2, it will move.