Hi, received the support files, the issue is that your track 6 is not being matched to the MusicBrainz track because the track lengths do not match up, your track is 33 seconds longer than the time registered on MusicBrainz
For your typical 4 minute pop-rock track this is a massive difference and indicates an error, however for a 17 minute track the difference is less problematic. So maybe the track duration check should be proportional rather than hard coded limit of 10 seconds
From Logs
Checking Release Track Duration Failed:Igor Stravinsky, Bergen Filharmoniske Orkester, Andrew Litton:10934884:The Rite Of Spring; Petrushka (1911):Song:Le Sacre du printemps:Pt. II: The Sacrifice:1105:Seconde Partie: Le Sacrifice:1072
You may be able to override this in the forthcoming release which contains a Match to One Album task, expect to be done this week.