Changing shape of Poly Mesh in ProBuilder at runtime.

I'm creating a game utilizing OSM date for geographic subdivisions. A lot of the game hinges on creating meshes that follow the preset borders, and I want to stream line this process by creating the shapes at runtime using the Vector coordinates from the OSM JSON files. ProBuilder gives me the shapes I need (Poly Shapes), but they can only be made using the pro builder editor using point and click functionality. I was able to transfer the appropriate points into the Poly Shape component at runtime, but the mesh does not update to reflect the new points. Refresh() doesnt work, and CreateShapeFromPolygon() doesn't work. Any help with this issue, or some suggestion of a new method of achieving this , would be greatly appreciated.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.ProBuilder;
 using UnityEngine.ProBuilder.MeshOperations;
 
 
 public class OSMCountyScript : MonoBehaviour
 {
     public PolygonCollider2D boundary;
     public string name;
     public Vector2 center;
     public Vector2[] boundaryPoints;
     public Vector3[] boundaryPoints3D;
     public ProBuilderMesh countyMesh;
     public PolyShape countyPoly;
     // Start is called before the first frame update
     void Start()
     {
         countyMesh = gameObject.AddComponent<ProBuilderMesh>();
         for (int i = 0; i < boundaryPoints.Length - 1; i++)
         {
             boundaryPoints3D[i].x = boundaryPoints[i].x;
             boundaryPoints3D[i].z = boundaryPoints[i].y;
         }
         List<Vector3> boundaryPointsList = new List<Vector3>();
         boundaryPointsList.AddRange(boundaryPoints3D);
         countyPoly.m_Points = boundaryPointsList;
         countyPoly.SetControlPoints(boundaryPointsList);
     }
 }

The Poly Shape and Mesh Component before runtime after making a basic Poly Shape using the built ProBuilder editor tools.

The Poly Shape component after runtime, with all 44 custom positions integrated into the Poly Shape script.