Custom web control is not rendering

I have a custom web control which want to add to a project of mine. I want to render this control for every request to the acumatica. But It renders only once and not redering for the subsequent requests. (Ex: Button clicks)

    public class ProgressBarControl : PXWebControl
    {
        public int Progress { get; set; } // Progress percentage (0-100)

        protected override void Render(HtmlTextWriter writer)
        {
            writer.AddAttribute("style", $"width: {Progress}%; background-color: green; height: 20px;");
            writer.RenderBeginTag(HtmlTextWriterTag.Div);
            writer.Write($"{Progress}%");
            writer.RenderEndTag();
        }
    }