Foursquare added support for comments and i was able to post the comments using the endpoint:

<https://api.foursquare.com/v2/checkins/ID/addcomment>

But the comments are not displayed in the response to the recent checkins endpoint.

<https://api.foursquare.com/v2/checkins/recent>

It displays the number of comments with an empty list.

comments: {
count: 5
items: [ ]
}

Is it a problem in the Foursquare API?