My question was, do you get stereo playback THROUGH THE CI1 when you are playing a mix out of your DAW. The test was, is the CI working as designed. From your answer, I still don’t know.
I think the CI series separate the inputs one to an ear, 1 to the left and 2 to the right. Ridiculous, I know, but that seems to be the case.
Try pressing the MONO button.