Demul joy 1 not working

im having trouble getting joy 1 to work with some games like Fighting Vipers 2 & Street Fighter Alpha 3 on demul 0.5.8.2 and older versions. Player 1 just doesn’t get detected. If you go to the versus menu there is no option for player1 vs player 2 only cpu vs player 2. can someone please help me out here?