Achievement bug?

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NathanDayfriend

So I was checking my achievements when I saw the achievement full house. I looked at the game, in which I supposedly didn't lose any pieces, but looking at the game I lost a pawn. Or is a pawn not a piece. Link to game: https://www.chess.com

NathanDayfriend

https://www.chess.com/game/live/6306235645

TheBearWithACamera
Win and don’t lose any pieces it very hard that’s why if you lose just paw you will get this achievement
KaungKaung2013
I have the win and don’t lose badge!
GM-MINH-QUN

?