This prompt should be that the file you uploaded the music may have an incorrect format or something is missing in the steps. You can take a closer look at the upload requirements.
There was an author who had done a tutorial on uploading music before. You can refer to it to see if there is any problem. https://www.youtube.com/watch?v=QYmOXNR10Ps
I know all this that you wrote and I’ve been posting tracks for 2 years now, but this one doesn’t work out, I’m doing everything right and even renamed the track, I still can’t download the files. I can record a video and send it to your email.