Is it supposed to rotate to the next seat wind? Sometimes I continue but I'm still at the same prevalent wind and seat wind.

Also, does it let you know when the game is over and who the winner is?

hi, in some rules, the wind does not rotate if the dealer wins the game.

Now, when the game is over, there is no special result page. But you can look at the result in the score tab to right of the game table.

Thanks! Is that true for Hong Kong?

yes, it is true for Hong Kong