music match how to re-upload failed uploads?

Hello

Probably due to a very poor internet-connection, I have some problems with the apple music match service.

I store all my music locally on a mac mini, in my workshop. They're being uploaded and shared through Apple Music match. (At least, they should).

I have a collection of lossless-music, mostly from bandcamp, which I obviously would like to have available to apple music throughout my devices. As I usually don't stream except at home where the connection is good, I would really like to have the purchased music properly uploaded and available.

It is as if a lot of my music was not uploaded, they are greyed-out in the music-library (of my laptop). Just updating the library on the mini (where the files are stored on a harddisc) does not work, the files stay greyed out.

What can I do to get the files uploaded to the cloud? Can I enforce an upload on them, without having to delete them in my library/losing individual metadata like playcounts etc.?

Many thanks.