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.
The Legend of Korra (2012)
1 other mistake in season 3 - chronological order
Starring: J.K. Simmons, Jeff Bennett, Dee Bradley Baker, Janet Varney
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)
Night of a Thousand Stars - S2-E11
Korra: You have a battleship?
Varrick: Of course I do! I bought the first one they made! Named her the Zhu Li.
Bolin: You named your battleship after your assistant?
Varrick: Yep! They're both cold, heartless war machines.
Trivia: The paint job of the Zhu Li is reminiscent to the way ships were painted in WWI. The Americans and the British did this because they thought it would make it more difficult for the Germans to estimate their speed and heading.
More questions & answers from The Legend of Korra
Answer: We do not see what happens. Avatar shows rarely have people killed on screen, so either he got away and was never seen again, or just died right there. As Amon was outed as a bender, he would not go back for his old boss.