I played a game and blundered/lost, but stockfish doesn't realize I've lost

Game is: en.lichess.org/a4ac4Vjs/black#63

At this point, it seems pretty clear that I've lost. But if I let stockfish play against itself, it thinks it's a draw (+0.2 evaluation ~5-10 moves in). Yet if stockfish continues against itself, white eventually wins. Is this a typical type of position that stockfish doesn't properly evaluate?

From the end position it's mate in 4 - and my stockfish sees it - check you stockfish settings maybe.

The position is a bit difficult. For white to win before blacks 33... blunder, he needs to find the non-obvious a4-a5 and then not recapture after b6xa5. Yes, it should see that but I can also see how one could easily overlook something like that.

I think this is draw if black just moves king f8 and f7 and if white bishop leaves f1-a6 then black can take it with Ba6 and white cant make progress

I... MADE... A... MOVE... AND... I... DIDN'T... LIKE... IT...

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That position is a draw before a6 which is confirmed by Stockfish which evaluates the position as equal at depth 65. Black moves his King around, lets say between f7 and f8.
White can only enter with the king via c6. But to get there, he has to remove his bishop. If then the black bishop can occupy the diagonal white just left and he can't come in. So white has to try to push his pawns. The only real try is a5 after which black can just let the a-pawns be exchanged, as no new entry squares are created. Actually it seems as you can even play a5 after a4 and the position remains a draw. Blacks defence is the same as before. I don't see how white can win.
But after a6 its a different story. There it probably needs more depth than the used. If you put the king into the centre, it realises that the position is lost even before the breakthrough is executed. Nevertheless interesting position.

Thanks for the analysis guys. After a6, turning up the depth did find the win for white at a depth of 40 (+4) and at 41 (+8.1). Before that, it fluctuated between 0 and 1.1.

I still think it's interesting that stockfish had to go so deep to confirm it is a win.

Edit: also interesting, stockfish doesn't ALWAYS find the win. I just re-ran the engine, and at a depth of 45, it's at +0.5. It seems there is stochasticity in the search.