Unexpected black move at 1. e4 c5 2. Nf3

Hello, so in this FEN the NCM engine tells me the best move for black is Nc6
Which might be good, but I have tried stockfish and various offline engines with various settings and never could get it to say Nc6 (it was mostly e6, d6 and sometimes e5)
Is this intended behaviour? Also, does anyone know what settings NCM applies to Stockfish engine?

rnbqkbnr/pp1ppppp/8/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - 0 1

Edit: I tried Stockfish with skill level set to 1 and it returned Nc6 as best move