Hi @krishaamer and @floflo91,
Thank you for the question.
This issue is a current limitation of the WP media library popup.
It is only possible to limit the media library to ‘uploaded to a specific post’ or ‘not connected with a post’.
When you are editing a user, the images available are the ones which are not connected with posts.
It is possible for you to tell ACF to use the basic uploader (no media library popup) with this code:
acf_update_setting('uploader', 'basic');
Perhaps you guys could hook into the admin_head and check if that page is an edit user page? Then run this code?
You can also use the new ‘uploader’ setting within the acf_form function for front end uploaders
http://www.advancedcustomfields.com/blog/acf-pro-v5-2-4-update/
