vertex[i] TransformPoint command not working

these are dark times at developer studio:I am making generative terrain tiles so I need to calculate the mountains on each tiles relative to their position in world space.

when I try to get the vertices world position with TransformPoint, it's still returning their local position:

Here is the code and debuglog- sampling the 1st vertex of 100 tiles, the tiles are displaced by 200, 400,etc, and their vertex TransformPoint are all the same:

 function  nzprl  (  meshobject : GameObject){//this function takes mesh objects and changes their vertices in XY and Z into mountains
 Debug.Log(  "object position   " +meshobject.transform.position  ); 
 
     var mymeshfilter : Mesh = meshobject.GetComponent(MeshFilter).mesh;
     var vtxArray : Vector3[];
     var scale = 7;
     if (vtxArray == null) vtxArray = mymeshfilter.vertices;
     var vertices = new Vector3[vtxArray.Length];
     
     for (var i=0;i<vertices.Length;i++) 
     {
         if ( i== 0 ){Debug.Log(  "vertex-position   "+vtxArray[i]  ); }
         vtxArray[i] =  transform.TransformPoint(vtxArray[i]);
         
         var vertex = vtxArray[i];
         if ( i== 0 ){Debug.Log(  "vertex-transformpoint position  "+vtxArray[i]  ); }
 
         vertex.y += (Mathf.PerlinNoise(vtxArray[i].x,5.456)*Mathf.PerlinNoise(vtxArray[i].z,7.53)-
         .5) *  scale;
 
 
         vertices[i] = transform.InverseTransformPoint(vertex);
         
     } 
     mymeshfilter.vertices = vertices;
     mymeshfilter.RecalculateNormals();
     mymeshfilter.RecalculateBounds();
     DestroyImmediate(meshobject.collider);
     meshobject.AddComponent("MeshCollider");
 
     
 }