Lyrics display bug in Apple Music after tag modification with Mp3tag

Hi, and thanks for this great app!

Overall I'm enjoying it but I'm surprised no one reported a bug that I can reproduce on any file, at least on my configuration (M1 Macbook running Ventura 13.6.4 / Mp3tag 1.8.13). My test files are Mp3, mainly with ID3v2.3 tags.

When I have lyrics in a file, if I change any tag of that file with Mp3tag and go back to Apple Music, the lyrics are displayed with a line break after each line. If I edit the lyrics in Music (just by adding a letter then erasing it for instance), lyrics are back to normal.

For instance, lyrics in Music before tag edition in Mp3tag:
Capture d’écran 2024-02-05 à 23.44.48

Same file, after editing the title in Mp3tag:
Capture d’écran 2024-02-05 à 23.45.53

I am the only one with this issue?

Am I the only one affected by this bug? I find it hard to believe that nobody has seen this, but maybe there aren't many people using unsyncedlyrics?

I should point out that when I use other software to edit tags, such as Metadatics, I don't have the problem (on the files that cause the bug with Mp3tag).

I'll analyze the issue and will post an update here.

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