Welcome to Interact.
This value is automatically calculated from other fields. For the specific album, what are the values for Album, Artist, Album Artist, and Track #. The easiest way to show this might be to do the following:
Select the files in the album, and use File > Export Playlist. Select:
Format: Text File (CSV delimited)
Included Fields: All Fields
Output Range: Selection
Save it to the Desktop, zip it, and attach it in a reply here.
