They aren't into it.

You can see it from the Red Flavor performance at the start. They seem languid, uncomfortable and apathetic. Wendy and Yeri's wisecracks and anecdotes couldn't even push the episode in a comedic direction, and I stopped halfway through because it was honestly painful to watch. I love RV as much as the next person, but they weren't into it this time around, maybe from loaded schedules, internal issues or something else entirely.