When I render one of my projects that has my voice on mp3 audio file. The video does not contain my voice (the background music however is rendered ok).
I'm using windows 10 version 20.12.3
MLT versión 6.25.0
Bibliotecas FFmpeg

I also tried downloading from https://www.gyan.dev/ffmpeg/builds/
this https://www.gyan.dev/ffmpeg/builds/ffmpeg-git-full.7z

then decompressed and copied the folders and files there to
C:\Archivos de programa\kdenlive-20.12.3_standalone\share\ffmpeg

and pasted there.

No success this far. I render again and my voice is not rendered.
I suspect the mp3 file is the issue. Probably if I convert the file to wav it would work... ?

But anyways, why is happening that and how do I solve it? Thanks a lot in advance

can be nice to hacve a sample of this MP3 (a small one) recorded on the same way to make some tests and (if this is replicable on other systems) fix the issue