The Legend of Korra (2012)

Venom of the Red Lotus - S3-E13

Continuity mistake: The cap Korra wears at the end continuously alternates between being white with a tribal band, the color of her hair, or just plain white when Lin is talking to her.

Friso94

Enter the Void - S3-E12

Other mistake: When everyone is mounting Lefty after escaping the temple, part of the lava flow directly on the right of the opening goes nowhere and just ends halfway down the screen.

Friso94

Endgame - S1-E12

Continuity mistake: When Amon saves himself from drowning with the giant watersprout, he has a staredown with Korra. In the shot right after one of the spectators says "The avatar was telling the truth" Amon's sideburns vanish. (00:14:50)

Friso94

Endgame - S1-E12

Continuity mistake: When Korra knocks Amon to the back of the hallway in episode 12, the window at the end is at about waist height. When she and Mako are standing in the window, it suddenly reaches almost to the ground.

Friso94