Static objects in 3D space move on ground

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I am using away3D and I have come across a stumbling block I cant get anyone to answer. I have tried EVERYTHING and I am not getting an answer on away3D forums.
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I place objects in 3D space. where the houses start at different y -value and z -value for reasons I dont know so they can look level.

[FONT=Courier, Monospaced]IT takes about 30 sec to load but here is my example of the problem . The objects move on the ground when they should not. I am just moving the camera. I dont underatnd how you place objects in 3D space in away3D.
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[FONT=Courier, Monospaced]http://www.mymrt.net/MyPlane/myload2.html
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[FONT=Courier, Monospaced]Here is the issue with my program after MANY hours of endless
fiddling.
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[FONT=Courier, Monospaced]The y value of the plane. It looks the same with value at -100 or -140 but it works at -140 where it is under all ojects. AT -100 it looks under all objects but doesnt move properly. Objects and the plane (ground) dont seem fixed.
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[FONT=Courier, Monospaced]// plane = new Plane({material:mygrass, name:“plane”, z: 200,y:-100,x:-100, width:1000, height:1000, pushback:true});
plane = new Plane({material:mygrass, name:“plane”, z: 200,y:-140,x:-100, width:1000, height:1000, pushback:true});[/FONT]

//load camera

camera = new Camera3D();
camera.x=100;
camera.z=-500;
camera.focus=30;
camera.zoom=20;

        view = new View3D({scene:scene, camera:camera});
        
        // center the viewport to the middle of the stage
        view.x = stage.stageWidth / 2;
        view.y = stage.stageHeight / 2;
        
        addChild(view);

//move camera

if (dict[Keyboard.RIGHT ]==true) {
            camera.moveRight(10); 
            
        }