I see whats happened here... Yes when i pull up my audio file in audacity and blow up the right channel i do see a couple of blips, those are some strange artefacts and I can here them over and above the click bleed, not sure what happened there, must have happened during the bounce.
I cleaned it up (attached)...... I am using Shure SE425 ...... turn the macbook volume up full and put only the right earbud in.. the click is there, clear as day. same with bongo's file. (i also attached a screenshot, you will see the Right meter doesn't read any signal so the file is definitely clean)
Wanna head into the music store and try some of the focusrite gear to see if that helps.