Lose of album number information
When a song is updated (is changed in size or date) then Music Archive deletes all information in the database that is connected to the physical song file. One ting these are the album number that is extracted from the ID3v1 tag. When the song is updated the information is currently deleted, but Music Archive does not extract the album number again from the ID3v1 tag of the new file. This does that the song will be shown in the database without an album number.

The album number information is only deleted from the Music Archive database. The Album number saved in the song file in an ID3 tag is not changed or deleted.

This problem is related to the bug Lose of genre information in Music Archive version 1.0.

The only work around of the problem is to manually update the album number field when updating a song file. But this is a very time consuming operation, and very unpractical.