Sometimes I can't write the update to ID3V2
Hi,
Sometimes I can't write the update to ID3V2, but ID3V1 works. I check out that there're permission to decide which ID3 version be writable.

Could it be modified before writing with the script? Thanks!
Using the python library, I've experienced a similar problem. I update values for several tags, including the band tag. When I print the tags after saving them, all the other changes are shown but there's no entry for band.
But if I then open the mp3 file in a GUI editor, say like MP3Tag, the band tag change that I made is shown there.
I've encountered this error when trying to set a value for band when there's not been one set. If there's already a value for band and I just change it, printing the tags displays the change.