Sung Hae-eun of "EXchange 2" deleted the YouTube vlog video. This is because it shows Jeon Jong-seo and Lee Chung-hyun, a representative couple.

On March 5, Sung Hae-eun said on the YouTube channel ‘Haeppy Hae-eun’ must have been surprised that the video suddenly disappeared. I decided not to upload my first Vlog again because I was careless in the editing process. I'm sorry.

The deleted video shows Sung Hae-eun's visit to a dog cafe, and the video shows Jeon Jong-seo and director Lee Chung-hyun, who accidentally visited the cafe in addition to Sung Hae-eun. Those who worked together as directors and actors of the movie "Call" have been in a relationship publicly since 2021.

Another problem with the video is that in addition to Jeon Jong-seo,Lee Chung-hyun couple, the faces of ordinary citizens were exposed without mosaic, Sung Hae-eun said, "I will check more  carefully in the future and try to become a better Haeppy Hae-eun channel."

Meanwhile, Sung Hae-eun, a former  flight attendant, rose to stardom with the original TVing entertainment show "EXchange 2" released last year.