Music deleting my local songs files

Hi,

I finally have the time to make a post for it so there it is !

I have a M3 Pro MacBook and, because I'm still buying CD and Vinyl, I have a 1TB music library on a external ssd.

Because I didn't want to buy for extra storage on my Mac, I've decide to import music directly from music when I RIP a CD or buy an album from Bandcamp to let the app organise my music file on the external drive.

Because of that, I have to connect my SSD to be able to listen my music on the Music app but it's fine because I can have my own high-fidelity music.

But ! And here is the issue, it's been few months since, when I try to listen to a music, the Music App says that the files couldn't be found. The app does that randomly on albums sometimes, and every week, I have to re-download an album that's missing...

Even when I'm trying to search for the album missing files on my ssd (in the music folder created by the app), the album folder is still there but the song files disappeared.

I saw that it's happening to few other people but no-one knows why ?

Could you please help me with that

Thanks