Cause:
If you connected your Instagram via Facebook. You will not be able to have the full Instagram experience.

At the time of this writing the official Instagram API does not let developers have access to the full Instagram experience thus there are a couple of limitations with publication.

You can read more about the limitations in the Instagram API documentation.

Link: https://developers.facebook.com/docs/instagram-api/guides/content-publishing

Solution:
In order to get the full Instagram experience you will have to manually login using our other method.