mixer problem please help

i have the same problem. I followed evry step of the instructions video but mixvibes simply does not work like it should.
these are the problems;
Inputs work but left and right output go threw the same exit! Althouw i installed the latest updates and I ve set the options right! ( It is set left to output 1/2 and right to 3/) just like in the video. It's a very strange thing to see because when i open the volume of the channel i can hear both tt's. When i open the other channel i can hear the sound of the needle against the vyill but no sound!. My mixer works (its a beat pro 4 mk2) my tt's work so what is wrong?
these are the problems;
Inputs work but left and right output go threw the same exit! Althouw i installed the latest updates and I ve set the options right! ( It is set left to output 1/2 and right to 3/) just like in the video. It's a very strange thing to see because when i open the volume of the channel i can hear both tt's. When i open the other channel i can hear the sound of the needle against the vyill but no sound!. My mixer works (its a beat pro 4 mk2) my tt's work so what is wrong?