I lay down 1 foundation and place 4 walls (high) on it 
remove foundation and the walls are floating
Is this supposed to happen ???

server.stability True -  is in my server.cfg
My walls have 100% stability so its working but stuff floats.

`A simple plugin that disables the stability of the building. Similar to "server.stability false", but when an item loses its base, it does not levitate.`

Yes. this is no stability

they can build forever using this plugin :)

Used to have a lot of trouble with players building "sky" bases or roads which would allow them to raid other bases with impunity,