This question is similar to Instagram API doesn’t find any liked posts for sandbox users.
When I send: https://api.instagram.com/v1/users/user-ID/media/recent/?access_token=access-token&count=20 I get back: {"pagination": {}, "meta": {"code": 200}, "data": []} The user has been accepted into the sandbox for this client so why am I not getting any data?
I got it working by removing the user from the sandbox and adding him back in again.