pcMANiac1 Hi. It has to be K2 profile introducing the avatar image since those images doesn't require an extra codding to handle custom fields from articles. Avatars are stored in /media/k2/users/2.jpg with a user ID used for its name.
Please edit /html/com_content/article/default.php look for a line:
<img src="//www.gravatar.com/avatar/<?php echo md5(strtolower(trim($author_obj->email))); ?>?s=80" alt="" />
and replace it with:
<img src=" /media/k2/users/<?php echo $user->id ?>.jpg" alt="" />
