NavMeshBuilder caching and updating

    IEnumerator Start() // Step one, beginning with caching data before going into the update loop
    {
        m_NavMesh = new NavMeshData();
        m_Instance = NavMesh.AddNavMeshData(m_NavMesh);
        if (m_Tracked == null)
            m_Tracked = transform;

        VoxelMapNavMeshSourceTag.Collect(ref m_Sources); //Populating the sources array and the array with moving objects helper class

        defaultBuildSettings = NavMesh.GetSettingsByID(0);
        bounds = QuantizedBounds();

        while (true)
        {
            UpdateNavMesh(true); //Pasted below
            yield return m_Operation;
        }
    }

    void UpdateNavMesh(bool asyncUpdate = false) //Update loop, first updating moving sources, followed by NavMesh rebuild
    {
        VoxelMapNavMeshSourceTag.UpdatePositions(m_Sources); //Iterates through the moving objects array, pasted below

        if (asyncUpdate)
            m_Operation = NavMeshBuilder.UpdateNavMeshDataAsync(m_NavMesh, defaultBuildSettings, m_Sources, bounds);
        else
            NavMeshBuilder.UpdateNavMeshData(m_NavMesh, defaultBuildSettings, m_Sources, bounds);
    }

    public static void UpdatePositions(List<NavMeshBuildSource> sourcesArray) //Content of the UpdatePositions method
    {
        for (var i = 0; i < sourcePositionUpdaters.Count; i++)
        {
            sourcesArray[sourcePositionUpdaters[i].index] = sourcePositionUpdaters[i].CloneSource(); // <- This works fine,                 creates new instance of the source and replaces the old one in the sources array at the same index
            //sourcePositionUpdaters[i].UpdatePosition();// <- This doesn't work (updating existing sources transform)
        }
    }