Playback only coming out of left side (WINDOWS)

I believe it might be because it says I only have 1 Audio channel on my device. Although everything else comes out of both speakers.

Interestingly if I change the panning on an instrument all the way to the right I can’t hear it, so it is detecting that my left headphone is indeed on the left side.

Welcome to the forum @kamil.oboe.

Please have a look at this thread