The SSL12 has 4 analog inputs and i can hear the mics on all 4 inputs except when using OBS. In OBS I'm only pulling in mic's 1-2. Mic's 3-4 will not come across into OBS. I've tested the SSL12 and I'm able to hear the mics in my headsets plugged into the SSL12 and I'm also able to hear the mic's when using software on the MAC. It's just whenever I introduce OBS that I'm having issues. Any suggestions?