Latency Issue in multitrack mode

I am trying to multi-track record audio using an external USB audio soundcard. I record track 1 which is fine. When I record track 2 while playing along with track one, it sounds fine - in time. But when I go to playback both tracks (to listen to them both), track 2 starts about a half-second behind track 1. I have set the latency in hardware set up to 30 - as low as it will go. The soundcard works and doesn't do this on an older version of Audition (legacy V 3 before they went cloud). I also have audition loaded on two computers and it does the same on both computers so it isn't the computer or soundcard. Please help - Audition is really useless to me at this point due to this issue. Any insight or guidance would be greatly appreciated.