Unable to play multi-channel audio

The library is unable to interpret FLAC files with more than 2 audio channels.
The file I have is playable in foobar2000, VLC, and Clementine (only supports the first 2 channels).

General
Complete name                            : D:\Music\Pink Floyd\The Wall\Another Brick in the Wall Part 3.flac
Format                                   : FLAC
Format/Info                              : Free Lossless Audio Codec
File size                                : 64.1 MiB
Duration                                 : 1mn 14s
Overall bit rate mode                    : Variable
Overall bit rate                         : 7 218 Kbps
Album                                    : The Wall
Album/Performer                          : Pink Floyd
Part                                     : 2
Track name                               : Another Brick in the Wall Part 3
Track name/Position                      : 12
Performer                                : Pink Floyd
Genre                                    : Rock
Recorded date                            : 1979
Cover                                    : Yes
Cover type                               : Cover (front)
Cover MIME                               : image/jpeg

Audio
Format                                   : FLAC
Format/Info                              : Free Lossless Audio Codec
Duration                                 : 1mn 14s
Bit rate mode                            : Variable
Bit rate                                 : 7 200 Kbps
Channel(s)                               : 6 channels
Sampling rate                            : 96.0 KHz
Bit depth                                : 24 bits
Stream size                              : 64.0 MiB (100%)
Writing library                          : libFLAC 1.3.0 (UTC 2013-05-26)