See this page on debugging web components
https://4js.com/online_documentation/fjs-fgl-manual-html/#fgl-topics/c_fgl_webcomponent_debug.htmlOtherwise if you are under maintenance, raise a case with your local support. They are going to want to know what front-end you are using GDC,GBC, GMI, GMA etc, what the versions of front-end and back-end are. It may also pay to check environment variables, GDC cache (if using GDC), and that your graphics driver is upto date.