Britain's Liam Broady and Tom Farquharson also enjoyed a comeback win as they overcame United States third seeds Denis Kudla and Raymond Sarmiento 4-6 6-2 6-2.
The Sarmiento line is operated by Trenes de Buenos Aires, which said in a statement Wednesday that it was conducting an internal investigation to determine what had gone wrong.
Once I could drag my gaze from the extraordinary view across Lago Sarmiento to the breathtaking granite monoliths of the Cordillera del Paine, I became increasingly impressed by my surroundings.