I realized, that since Sunday, 8th December 2013 the Instagram API do not return the correct count of users who has liked a media.
Example: For a media with 500 likes the API returns a list with only about 120 users.
Before Sunday everything works well and I do not have any notification from Instagram changing there policy on this topic.
The official Instagram API Console returns the same amount of users like my app, and therefore I think the Instagram API has a bug or they changed the policy.
Do everybody noticed the same issue?
Thanks a lot for any feedback helping to solve the problem! Joseph