New user can register as Administrative but it was set to subscribers

I login and saw there was a bunch of users with no email addresses (in the email feild it had random letters no @ or anything ywt somrthing like “ajwogwh” well at least some of tbem, and thwy were assign administrator role when I had my account set to New user that register can only have subscriber role. I even double check to make sure it was assign to only subscriber role