bug: “inaccuracy” when I am playing a forced mate

Sort:
RealTactics960
I Beat Wendy!
https://www.chess.com/game/computer/151247153
On move 97, I played a move that forces her to slowly move towards a corner, where I can easily checkmate. And the site gives an inaccuracy, with the position being rated +4. Yes, that’s right. Is my analysis just too low?
RealTactics960
By analysis I meant depth of stockfish
Martin_Stahl

Yes, it's probably depth related. At highest the review strength it's not classified as an inaccuracy.