According to Sports Seoul, the filming of EXO’s new MV, originally scheduled for June 2nd, has been postponed due to Chen, Baekhyun and Xiumin’s request to cancel their exclusive contracts.
Regarding this matter, SM Entertainment stated, “We will still proceed with filming the MV with all 7 EXO members as planned.“

Excluding Kai, who enlisted last month, Xiumin, Suho, Baekhyun, Chen, Chanyeol, D.O, and Sehun will reportedly participate in the MV filming.
Earlier, Chen, Xiumin, and Baekhyun requested the cancellation of their exclusive contracts with SM Entertainment through the law firm LIN. Both sides are currently in dispute over this matter.
Source: twitter