Facebook Graph API not returning "from" field

Question

I have a page access token and I am trying to get the content of the comment and the commenters username from a Facebook post. But i never get the "from" field returned. Permissions (all standard ) that the access token has : pages_show_list business_management pages_read_engagement pages_read_user_content pages_manage_engagement

Is there any permissions that I am missing? Do any of these need to be advanced level?