My Magento 2.4.6 backend website is not loading required.js file


I have Magento 2.4.6 hosted by Nexcess. My server has Radius, Varnish and CDN enabled.

The frontend of the website runs perfectly, but unfortunately my backend is not working properly. The site is no loading the required.js file properly. The backend loads but the CSS files are not loading properly. I have added a page rule to disable performance when the backend url is fetched however that hasn’t resolved the issue.

Any ideas what could be causing the issue.

Thank you.