This issue is intermittent.
Here is an example of a status with the bug though. The “favorited” field remains False even though “favorite_count” has been incremented from 0 to 1.
The authenticating user id is 288424828, and that’s the same user id that created the favorite.
/1.1/statuses/show.json?id=561507219049820161
{“created_at”:“Sat Jan 31 12:52:07 +0000 2015”,“id”:561507219049820161,“id_str”:“561507219049820161”,“text”:“Kettlebell Deadlift. #deadlift #hamstrings #glutes #legs #fitness #kettlebells #fitwomen #leader #trainer http://t.co/Z2uFtr8SUW",“source”:"\u003ca href=“http://instagram.com” rel=“nofollow”\u003eInstagram\u003c/a\u003e”,“truncated”:false,“in_reply_to_status_id”:null,“in_reply_to_status_id_str”:null,“in_reply_to_user_id”:null,“in_reply_to_user_id_str”:null,“in_reply_to_screen_name”:null,“user”:{“id”:2154043597,“id_str”:“2154043597”,“name”:“Sweaty Glam Girl”,“screen_name”:“sweatyglamgirl”,“location”:“NY and Anywhere YOU Are”,“profile_location”:null,“description”:“Fitness Coach/Fitness Model: Adyana de la Torre. Seen in #workout videos —Brazil Butt Lift, Blood Type Workout, Urban Rebounding Extreme and more.”,“url”:“http://t.co/nvjSjvF2T3",“entities”:{“url”:{“urls”:[{“url”:“http://t.co/nvjSjvF2T3”,“expanded_url”:“http://www.sweatglamgirl.tumblr.com”,“display_url”:“sweatglamgirl.tumblr.com”,“indices”:[0,22]}]},“description”:{“urls”:[]}},“protected”:false,“followers_count”:206,“friends_count”:483,“listed_count”:0,“created_at”:"Fri Oct 25 02:52:37 +0000 2013”,“favourites_count”:137,“utc_offset”:null,“time_zone”:null,“geo_enabled”:true,“verified”:false,“statuses_count”:525,“lang”:“en”,“contributors_enabled”:false,“is_translator”:false,“is_translation_enabled”:false,“profile_background_color”:“C0DEED”,“profile_background_image_url”:“http://abs.twimg.com/images/themes/theme1/bg.png",“profile_background_image_url_https”:“https://abs.twimg.com/images/themes/theme1/bg.png”,“profile_background_tile”:false,“profile_image_url”:“http://pbs.twimg.com/profile_images/491705721310818304/omsLA5_P_normal.jpeg”,“profile_image_url_https”:“https://pbs.twimg.com/profile_images/491705721310818304/omsLA5_P_normal.jpeg”,“profile_banner_url”:“https://pbs.twimg.com/profile_banners/2154043597/1402624901”,“profile_link_color”:“0084B4”,“profile_sidebar_border_color”:“C0DEED”,“profile_sidebar_fill_color”:“DDEEF6”,“profile_text_color”:“333333”,“profile_use_background_image”:true,“default_profile”:true,“default_profile_image”:false,“following”:false,“follow_request_sent”:false,“notifications”:false},“geo”:null,“coordinates”:null,“place”:null,“contributors”:null,“retweet_count”:0,“favorite_count”:1,“entities”:{“hashtags”:[{“text”:“deadlift”,“indices”:[21,30]},{“text”:“hamstrings”,“indices”:[31,42]},{“text”:“glutes”,“indices”:[43,50]},{“text”:“legs”,“indices”:[51,56]},{“text”:“fitness”,“indices”:[57,65]},{“text”:“kettlebells”,“indices”:[66,78]},{“text”:“fitwomen”,“indices”:[79,88]},{“text”:“leader”,“indices”:[89,96]},{“text”:“trainer”,“indices”:[97,105]}],“symbols”:[],“user_mentions”:[],“urls”:[{“url”:“http://t.co/Z2uFtr8SUW”,“expanded_url”:“http://instagram.com/p/yhNyPuis7X/”,“display_url”:“instagram.com/p/yhNyPuis7X/”,“indices”:[106,128]}]},“favorited”:false,“retweeted”:false,“possibly_sensitive”:false,“possibly_sensitive_appealable”:false,“lang”:"en”}