So Nyeo Shi Dae encounters with a broadcast accident during their comeback stage.
The group had their first comeback stage on MBC Music Core on 30th January, they performed 2 songs – ‘Oh!’ and ‘Show!Show!Show!’ on the show that day.
For their ‘Show!Show!Show!’ stage, the girls did a performance similar to a musical and showed off their sexy charms. And they moved with the bubbly cheerleader concept for their ‘Oh!’ performance.
But near the end to their ‘Oh!’ performance, the screen went blank for about 5 seconds.

TV viewers commented, “So Nyeo Shi Dae was on and then suddently the screen went blank, and I had a shock. Even the TV is in shock with the girls’ comeback”, “They even get a broadcast accident… prelude to a big hit?”etc.
S: Newsen

MBC Music Core, “Problem with transmission”

MBC Music Core production team spoke up about the broadcast accident, “There was a technical problem during the show lying in the transmission. We are currently investigating the problem.”
S: MoneyToday

Credits to Sookyeong @ K Bites!