Elementor not loading on a specific computer

On all my devices, it loads absolutely fine, so I'm confident its not a theme/plugin issue.

However, a site user (admin access) gets white screen non-stop loading when trying to edit a page using Elementor.

  • They tried clearing cache and on different browsers.
  • They're on a home network with a fairly standard firewall set-up.
  • No CDN in use

Can anyone think what things might be causing the issue? Its a bit difficult to troubleshoot the problem cause everyone is working remotely.