On May 24, VIXX uploaded a preview of a special video for their 5th anniversary. The video, titled '2017 VIXX Company', was however soon taken down. People had noticed that Ken had written curses on his sketchbook during broadcast. It read, "You f*cking b*stard" and "Why are you hitting me, f*cking b*tch".

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While people have no issue with the members cursing when among one another, many believe it was completely inappropriate while he knew cameras were rolling and filming. 

Jellyfish Entertainment issued an apology, saying, "Inappropriate words were aired on 'VIXX Company'. We are sorry about causing a controversy. In any kind of situation, inappropriate words are wrong. We have deleted the clip in question, and will be taking action so the video does not spread."