Here is an official statement from JYP Entertainment:
“Hello. This is JYP Entertainment.
We announce that Jungyeon will not be participating in ‘2020 SORIBADA BEST K-MUSIC AWARDS’ on August 13th due to her health issues. We ask fans for your generous understanding.
We will do our best for her quick recovery.
Meanwhile, Jeongyeon had to perform seated during the group’s online concert, ‘Beyond Live – TWICE: World In A Day’ back on August 9.
Take care Jeongyeon!