Twitter creator link has disappeared for Super Admin

Since the last few version of this plugin, I have been unable to add twitter card information to my members. I use to be able to add twitter information as the super admin, but the link has now disappeared and only is only viewable to the member that is logged in.

I have selected yes to ‘Add a field in profiles for author’ and the meta key is currently set to ‘jm_tc_twitter’

Is there something that I’m doing wrong as this use to work just fine.