As the screenshot above shows, some tracks of the same title are failed to be uploaded to iCloud/iTunes Match. Even they have different time lengths and belong to different discs.
For example, in the above screenshot, SHOW (3:32), the first track of the second disc has an iCloud status icon Duplicate, whereas SHOW (3:30), the first track of the first disc is successfully uploaded to iCloud/iTunes Match.
Why does this situation happen, and how can I successfully upload these tracks to iCloud/iTunes Match?