I am trying to live stream using OBS and a PresSonus studio 1824c with 4 mics and 3 instruments connected to it. The laptop PreSonus software detects the sounds from all the different channels. But on OBS after adding all the 1/2, 3/4, 5/6, 7/8 channels I only get sound from channels 1, 3, 5, 7. Please let me know how I can get OBS get sound from the even channels.