Find the ID of the role in the URL when opening the role in the Role detail view

Go to Users > switch to Advanced search mode.

Add this code (adapt the ID)

-userRoles.userRoleId:1b611edb400c403498113523f1127580s

• You can now batch edit the users and assign the role they did not have before.
• The ID is shown in the URL in the Role Detail view.
  VIDEO: How To Search with Query for User Role