Converted stereo MP3s don't sound correct
If you convert a stereo MP3 into an audio track, the original sound will not be maintained. There is no problem with converting mono MP3s.
Sample audio: https://www.learningcontainer.com/wp-content/uploads/2020/02/Kalimba.mp3
Resulting wav: https://drive.google.com/file/d/1aCC7TLlosI9GZzk85nbKqcIElt-ltqhs/view?usp=sharing