On May 16 KST, C9 Entertainment disclosed that EPEX member Keum Dong Hyun will be taking a break from all engagements for personal reasons. The agency mentioned that his activities will be paused until his matters are resolved, and EPEX will continue their promotions as a 7-member group from now on.

Recently, there have been announcements of hiatuses by a few other male group members, leading to speculation that they might participate in Mnet's upcoming idol audition show 'Boys II Planet'.

Previously, Keum Dong Hyun gained attention as a contestant on the Mnet show 'Produce X 101', where there were controversies over his manipulated final ranking leading to his elimination from the final group at the 14th position.

Additionally, EPEX had to reschedule their Fuzhou concert due to local issues.