Any news regarding this?. Still getting mismatches specially when it comes to differents remasters and such. Only way I have found to force Itunes to upload the song is to add one minute of silence in audacity (less isn´t enough), at the beginning of the affected songs and then reimport them to Itunes and adjust the playback to start at 1:00, but this isn´t practical. This is killing my use of Icloud Music Library, particularly when it comes to expanded and remastered soundtracks, which are matched to the old master present in the Itunes Store. Have reported the issue to Apple for years, but to no avail. Thank very much in advance.