Some more details about this game.
Apparently Naka's 62...g5 was not the losing move.
It was giving up the a-pawn a few moves later that did it.
(blunders come in two's)
MVL was also playing in this event at St, Louis.
Naka's g5 may have brought back a painful memory.
G. Gajewski - M. Vachier-Lagrave Reykjavik Open 2013
MVL played 44....g5. 45.h5
which is the same pawn set up as the Carlsen - Naka game.
MVL also lost.