Computer Analysis shows an inaccurate move but Stockfish 14+NNUE on depth 23 disagrees

After finishing my game, I performed a computer analysis. The computer analysis indicates that I had one inaccuracy. When I investigated it, the built-in LiChess Stockfish 14 + NNUE shows the same move as I had played. I am puzzled since my move and recommended move are the same, why did the analysis flag it as an inaccuracy?

Please see the game link below. My move 15...e5 was marked as inaccurate.



Hope this is not a bug. Thanks for your support.

The computer analysis is done using distributed computing. The builtin lichess Stockfish 14 + NNUE runs in your browser.