My output address isn't that one. It should send there right ?
It should, but not the same coins that you just deposited. Some other - presumably "mixed" - coins from somewhere else.
He's saying that he tried to mix to his address X but the fake mixer sent the coins to a random address, which is most likely owned by the scammer or some exchange, and not the one they were supposed to send to (X).
OP sent coins to 1HSEsVdmcEgFHmQ9EixiWek6KoYiRaRkDK. OP wouldn't be getting the coins to their address X from 1HSEsVdmcEgFHmQ9EixiWek6KoYiRaRkDK even if it was a legit mixer. The coins would be coming from some pre-mixed pool or something. Right? Or am I having a major brain fart?