Issue w/stereo track & "one track per channel" quality

So I'm working on a project right now, and I've encountered a problem with a stereo .wav music track I added, where it's fine in the timeline, but upon exporting as an mp4, only renders one side of the stereo. As per this thread, I unchecked "One track per channel," which fixed this problem, but introduced another. It made the audio basically unusable-- low quality and very compressed and artifacty.

I've tried different render settings as well as a bunch of different formats in the clip attributes(like switching to 5.1 and muting unused channels), but nothing seems to work to where I can have both stereo channels and in good quality.


DaVinci Resolve Version 16.2.7, Windows 10