SHOW "No items [Check here why]" at version 2.4.2.1

For JSON File from widget contact support:

{
  "date": "Mon, 27 Apr 2015 23:43:02 +0000",
  "server": "Apache/2.4.9 (Unix) OpenSSL/1.0.1g PHP/5.4.27 mod_perl/2.0.8-dev Perl/v5.16.3",
  "php": "5.4.27",
  "wp": "4.1.1",
  "ytc": "2.4.2.1",
  "redux": "N/A",
  "url": "https://habibiecenter3.dev",
  "widget_id": "youtube-channel-2",
  "title": "Our Video",
  "class": "",
  "channel": "UCUqXlNHlx9lrt4CDhvIIHPg",
  "vidqty": "1",
  "playlist": "",
  "use_res": "0",
  "cache_time": "0",
  "only_pl": false,
  "getrnd": "on",
  "maxrnd": "1",
  "goto_txt": "The Habibie Center",
  "showgoto": false,
  "popup_goto": "2",
  "showtitle": "on",
  "showvidesc": "on",
  "descappend": "…",
  "videsclen": "0",
  "width": "306",
  "responsive": "on",
  "to_show": "thumbnail",
  "no_thumb_title": false,
  "autoplay": false,
  "autoplay_mute": false,
  "norel": false,
  "modestbranding": false,
  "controls": false,
  "fixnoitem": false,
  "ratio": "3",
  "fixyt": "",
  "hideinfo": "",
  "hideanno": "",
  "themelight": "",
  "debugon": "",
  "userchan": "",
  "enhprivacy": ""
}

Can you please enable caching in widget and disable “Show random video” because you have set to fetch only one video from YouTube so no need to request random from single video in feed. Then try again.

As you applied this on development domain, check your error_log and confirm is there some error related to YTC?

It works fine for me https://goo.gl/x2iTCZ