When trying to export the 4 stereo audio tracks of a 2-minute trailer in wave format, I end up with 8 separate tracks even though the "Render one track per channel box" is unchecked.

Moreover, while rendering the playhead struggles, stuttering and often jumping back, and the 8 resulting tracks come completely
empty (no audio).
Now in "Single clip" render mode, checking the "Render one track per channel box" does not result in two mono tracks as one might expect. No matter what, checked or unchecked, I always end up with a stereo track.

Now if I do this, I end up again with 8 mono tracks:

So the question is how can I get four separate stereo wave tracks of my timeline? And how do I export one single track, let's say Tracker Number 3, without having to move it to position one, which is what I will end up doing in order to get my four stereo tracks?