Comments stated, "She's the only one out of sync", "She's not good at dancing", "She debuted too soon. She needs more practice", "Not just 'Power Up', but she also couldn't keep up with 'Peek-A-Boo'", "She's always late with her moves", "What a mess...", "It should've been Joy, Wendy, Seulgi and other trainees... Irene is just as bad as Yeri but she's covering it up with her visuals."

A similar issue arose back in February during Red Velvet's promotions for "Bad Boy". Yeri, as well as other members, were criticized for their lack of synchronization. 

Meanwhile, there are fans who are defending the idols, stating, "Red Velvet members seem so tired. Let's not criticize but encourage them", "They're still cute while making mistakes."