Audio is not streaming in stereo.. Please help

[jweettog]

Hello i use OBS streaming DJ sets, i use a Pioneer DJM-v10 mixer and a Focusrite 4i4 (3rd Gen) to route Dj mixer through my macbook that sends it to OBS. I have 2 jack mono in the input (R-L) of my focusrite but it does not seem to stream a stereo signal:( what do i oversee, please help