In Drupal 7 Views how do you set permissions via roles for an attachment display? I am trying to set roles permissions for my attachment view, but every time i set the roles permissions it affects the master display aswell. I want my attachment display only viewable to admin's of the site. Am i missing something or should is there another alternative to this issue?
From you screenshot you gave permission to anonymous user, authenticated users and instructor. So the attachment will be visible to all users. Choose only admin for the attachment and for the page it is attached you do not need to set permissions. You settings should look something like the image below





Make sure you always apply permissions to the current display and not to all display.