Lera and Nika Tomanova's Judge Cuts performance in Episode 1207 consisted of hanging and moving on Aerial Straps together. Lera's and Nika's performance was not strong enough for the judges to send them to the Quarterfinals, eliminating the duo from the competition along with Danylo and Oskar, instead of Sara and Hero.
America's Got Talent 2017 Danylo & Oskar and Lera & Nika FUll Clip Judge Cuts S12E08
Judge Cuts Performance
America's Got Talent 2017 Who Makes It to the Live Shows Judge Cuts Winners Part 1 S12E08