Update Points Update brep Vertex | Somewhere it fails

import rhinoscriptsyntax as rs
import scriptcontext as sc
import Rhino

# Global variables to keep track of the Brep and point mappings
brep_id = None
brep = None
vertex_point_ids = []
vertex_point_mapping = {}

def extract_brep_vertices_with_update():
    global brep_id, brep, vertex_point_ids, vertex_point_mapping

    # Prompt the user to select a Brep (surface or polysurface)
    brep_id = rs.GetObject("Select a Brep (surface or polysurface)", rs.filter.polysurface | rs.filter.surface)
    if not brep_id:
        print("No Brep selected.")
        return

    # Get the Brep geometry
    brep_obj = sc.doc.Objects.FindId(brep_id)
    if not brep_obj:
        print("Unable to find the Brep in the document.")
        return

    brep = brep_obj.Geometry.Duplicate()  # Make a copy of the Brep geometry
    if not isinstance(brep, Rhino.Geometry.Brep):
        print("The selected object is not a valid Brep.")
        return

    # Initialize mappings
    vertex_point_ids = []
    vertex_point_mapping = {}

    # Iterate over all vertices in the Brep
    for i, vertex in enumerate(brep.Vertices):
        # Get the vertex location
        vertex_point = vertex.Location

        # Add the point to the document
        pt_id = rs.AddPoint(vertex_point)

        # Store the mapping from point ID to vertex index
        vertex_point_mapping[pt_id] = i

        # Keep track of the point IDs
        vertex_point_ids.append(pt_id)

    # Subscribe to the ReplaceRhinoObject event
    handler = BrepUpdateHandler()
    sc.sticky["brep_update_handler"] = handler  # Prevent garbage collection

    print("Brep vertices added as points. Move the points to adjust the Brep geometry.")

class BrepUpdateHandler:
    def __init__(self):
        # Enable the ReplaceRhinoObject event handler
        Rhino.RhinoDoc.ReplaceRhinoObject += self.OnReplaceRhinoObject

    def OnReplaceRhinoObject(self, sender, e):
        # Called when an object is replaced in the document
        if e.ObjectId in vertex_point_ids:
            # If one of our points was replaced (moved), update the Brep
            UpdateBrepGeometry()

    def Dispose(self):
        # Unsubscribe from events
        Rhino.RhinoDoc.ReplaceRhinoObject -= self.OnReplaceRhinoObject

def UpdateBrepGeometry():
    global brep_id, brep, vertex_point_ids, vertex_point_mapping

    # Create a new Brep to modify
    new_brep = brep.Duplicate()
    if not new_brep:
        return

    # Update vertex positions
    for pt_id in vertex_point_ids:
        # Get the new location of the point
        new_pt = rs.PointCoordinates(pt_id)
        if new_pt is None:
            continue

        # Get the corresponding vertex index
        vertex_index = vertex_point_mapping[pt_id]

        # Update the vertex location
        brep_vertex = new_brep.Vertices[vertex_index]
        brep_vertex.Location = new_pt

    # Rebuild edges and faces to reflect the new vertex positions
    new_brep.RebuildEdges()
    new_brep.Faces.ConvertSurfaceToNurbs()  # Ensure surfaces are NURBS for consistency

    # Replace the old Brep with the new one in the document
    sc.doc.Objects.Replace(brep_id, new_brep)
    sc.doc.Views.Redraw()

    # Update the global Brep variables
    brep = new_brep
    brep_id = sc.doc.Objects.Find(new_brep).Id

# Run the function when the script is executed
if __name__ == "__main__":
    extract_brep_vertices_with_update()

What I need :
-user selects brep
-script extract point
-subscribe to event
(works good til now)
-when the point is moved, the vertex of the solid should be moved too updating the 3d geometry

Why is the vertex moving not working? Should be all good

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