I figured this might be the better place to ask a NND question.
Recently for reasons I don't know, the playlist after clicking a video started showing "recommended" videos as opposed to what's next in line in terms of number of views or popularity.

http://www.nicovideo.jp/ranking/mylist/daily/all

An example would be selecting the number one video off this list, it brings up the video, it would show similar videos as opposed to what was #2.

http://i.imgur.com/heJsVgY.png

In the past, it showed #2 but all of a sudden, it's showing similar/recommended videos.

Any clue how to change the playlist?