Audio problem: When April, Casey, Donnie, Mikey, and Leo defeat the creep, Casey says, "That's what you get for messing with my mask, freak." When he says "mask," his voice changes.
Audio problem: When the creepy guy with the weird hair knocks Korra back a zone, the very distinct buzzer isn't heard. (00:09:35)
Audio problem: When Oliver is fighting the guys in the hallway, he shoots the second to last guy. But when he starts to draw an instant beforehand, you can see that his right hand, with which he holds the arrow, is nowhere near the quiver when the sound of the drawn arrow begins.