Show Schema Map is displaying blank page for users other than admin

1. Grant the personalize_dictionary role to the user.
   Please note that if you add this role to user, the user will have high-level privileges over the instance, and access to the Application "System Definition", it is not a role that you will want to easily assign to a user.
2. Another solution can be to customize the script include named 'ERDProcessor' (at line 495).
   https://<instance-name>.service-now.com/sys_script_include.do?sys_id=5de8f42137130000dadaa3549dbe5daa
   You can make it work by updating line 495
   • FROM:
     • if (!gs.hasRole('personalize_dictionary')) {
   • TO:
     • if (!gs.hasRole('personalize_dictionary') && !gs.hasRole('<role you want>'))