3200 Maximum bot.. blundered??

I was playing the 3200 bot on "friendly" mode, and ended up with a Najdorf Sicilian. I played mainline and was testing the soundness of a bishop sacrifice to see how it would react... after three more moves, it played 17.. Nc5.

And when you plug this into a Game Report on normal 18 depth.. it analyzes it to be equal. But if you turn on lines and let it run.. it's completely winning for white after Qh5!

The game report says it played all the best moves, but clearly it didn't as after some trades- all best moves for the computer- I was in a winning position, up a queen and three pawns for two bishops and a knight. In the excitement of this, I accidentally resigned.. something I got a good laugh out of.. but I was actually in a completely winning position against the maximum chess.com bot. Here's the base pgn, if you want to run your own report. 

Thoughts? 

Well, maybe that was the only move. What were the alternatives the computer could have played?

Well, it's hard to find the first move that went wrong without going back and letting the analysis reach a good depth. Right now on move 12, it's showing a +1.64 at depth 25, so I guess I have to look further.. it looks like there was a blip where the computer actually missed a line and just lost. 

After 11. g4 at around depth 22 it realizes the advantage, and 11. ...b5 ends up looking worse and worse. This is very interesting, because the 3200 bot is, well, a 3200 bot and lost very quickly

But why did you resign?

U were in winning position

I said in the third paragraph, I clicked the resign button my accident.. in the browser UI the resign button is right next to the moves, and I was going back to check a previous position and accidentally clicked it. While it is disappointing, the concept remains the same; the 3200 bot screwed up.

I hope someone with diamond comes across this, and be kind enough as to run a 30 depth report.. I'd like to see the results of that.

I might later it’s interesting 

oh ok