Catalina's Music.app ignores the "create-filenames-with-tracknumber" hidden setting

It turned out that only the songs I played before setting the hidden flag (I moved the library from an older Mac) kept at auto-renaming. Removing and rewriting track number, after the flag was set, solved the problem.

So it seems that the flag is not ignored.

If you look at Music, you can easily understand that it's just iTunes with something stripped out.

Anyway, it does consider that setting, when download the song from iCloud.

Then, something random happens that ignore the setting.

As far as I know, it was an "import setting" in iTunes versions < 8.

Than it was maintained as an hidden setting, along with "create-filenames-with-discnumber".

An official documentation never existed for that param, neither in iTunes, nor in Music.

I thought that probably I don't have enabled the other option for disk numbers.

Maybe that could "confuse" the app...? (but did not with iTunes actually)

Re-enabling the "Keep organized switch" does anything.

Actually, it keep renaming some songs in a truly random way. If I re-download from cloud, they are written without track number. Then, at a random time, it is renamed.

Yes, I'd too.

When I enabled it on the new Mac, I just checked what was enabled on the old one.

But it's probably better to enable both of them

Even disabling the "create-filenames-with-discnumber" switch didn't work.

Files are still RANDOMLY modified to the version with track number, without any foreseeable logic. Some are, some are not.