Music does not save custom lyrics

Music does not save custom lyrics.

I load the mp3s on Music, I insert the various tags and the album cover, the custom lyric, I press ok and everything is saved except the custom lyric.

I use macOS Monterey version 12.3. I don't have to do any upgrade.

I followed all the steps in this guide:

Repair security permissions for iTunes fo… - Apple Community

but it does not work.

The problem started with Mac OS Catalina or Mac OS Big Sur, I don't remember.

Thank you