Seventeen's Seungkwan, who earlier mourned the loss of his good friend ASTRO's Moonbin with a lengthy letter and past photos together, will not be participating in some of Seventeen's comeback schedules.

On April 29 KST, Pledis Entertainment stated,

"Hello.
This is PLEDIS Entertainment.
We would like to inform you that SEVENTEEN member SEUNGKWAN will not be able to participate in some of the SEVENTEEN’s 10th mini album 'FML' activities, including the SEVENTEEN 10th mini album 'FML' fan signing event, as he is currently feeling unwell. We offer our apologies to our fans and ask for your generous understanding.
Our company is committed to providing necessary support and assistance to SEUNGKWAN during his recovery process.
Thank you."

Meanwhile, the Seventeen member was seen performing with professionalism on stage with the rest of his group on the April 28 broadcast of KBS2's 'Music Bank'.