Comment 2 for bug 1570469

Reproduced this on rc-proposed. Get this in music app log file:-

qml: onStopped.
OnTrackListReset signal arrived via the bus.
TrackListReset signal received
virtual bool AalMediaPlaylistProvider::addMedia(const QMediaContent&)
Adding track file:///media/phablet/2541-1C26/Music/Space Walrus/CD #1/Proximity Mix.mp3
Failed to add track ' "file:///media/phablet/2541-1C26/Music/Space Walrus/CD #1/Proximity Mix.mp3" ' to playlist: mpris.Player.Error.UriNotFound: Warning: Not adding track file:///media/phablet/2541-1C26/Music/Space Walrus/CD #1/Proximity Mix.mp3 to TrackList because it can't be found.
virtual void AalMediaPlayerControl::play()

and this from media-hub

  Output to wired headset: false
Checking if port is available -> false
PulseAudio sink details for sink.primary with index 0 is available:
  Output to wired headphone: false
  Output to wired headset: false
Checking if port is available -> false
PulseAudio sink details for sink.primary with index 0 is available:
  Output to wired headphone: false
  Output to wired headset: false
void core::ubuntu::media::PlayerImplementation<Parent>::Private::clear_wakelock(const core::ubuntu::media::PlayerImplementation<Parent>::Private::wakelock_clear_t&) [with Parent = core::ubuntu::media::PlayerSkeleton]
void core::ubuntu::media::PlayerImplementation<Parent>::stop() [with Parent = core::ubuntu::media::PlayerSkeleton]
PulseAudio event for sink with index 0 received.
State changed on playbin: PAUSED
Emiting playback_status_changed signal: PlaybackStatus::paused
Checking if port is available -> false
PulseAudio sink details for sink.primary with index 0 is available:
  Output to wired headphone: false
  Output to wired headset: false
State changed on playbin: READY
Emiting playback_status_changed signal: PlaybackStatus::ready
bool gstreamer::Playbin::set_state_and_wait(GstState): requested state change.
Setting state for parent: 0xabd6e764
virtual bool gstreamer::Engine::stop()
Emiting playback_status_changed signal: PlaybackStatus::stopped
virtual void core::ubuntu::media::TrackListImplementation::reset()
Updating MPRIS TrackList properties; Tracks: 0, has_previous: true, has_next: true
*** void core::ubuntu::media::TrackListSkeleton::Private::handle_add_track_with_uri_at(const Ptr&)
apparmor profile name: com.ubuntu.music_music_2.4.971, is_unconfined(): false, has_package_name(): true
context.profile_name(): com.ubuntu.music-music
parsed_uri.path: /media/phablet/2541-1C26/Music/Space Walrus/CD
Warning: Not adding track file:///media/phablet/2541-1C26/Music/Space Walrus/CD #1/Proximity Mix.mp3 to TrackList because it can't be found.
virtual void core::ubuntu::media::ServiceImplementation::pause_other_sessions(core::ubuntu::media::Player::PlayerKey)
bool gstreamer::Playbin::set_state_and_wait(GstState): requested state change.
State changed on playbin: READY
Emiting playback_status_changed signal: PlaybackStatus::ready
State changed on playbin: PAUSED
Emiting playback_status_changed signal: PlaybackStatus::paused
Setting state for parent: 0xabd6e764
Requesting power state
void core::ubuntu::media::PlayerImplementation<Parent>::Private::request_power_state() [with Parent = core::ubuntu::media::PlayerSkeleton]
virtual bool gstreamer::Engine::play()
Engine: playing uri: State changed on playbin: PLAYING
Emiting playback_status_changed signal: PlaybackStatus::playing
file:///home/phablet/Music/Fatboy%20Slim/15/Weapon%20Of%20Choice.mp3
Emiting playback_status_changed signal: PlaybackStatus::playing
PulseAudio event for sink with index 0 received.
PulseAudio event for sink with index 0 received.
Checking if port is available -> false
PulseAudio sink details for sink.primary with index 0 is available:
  Output to wired headphone: false
  Output to wired headset: false
PulseAudio event for sink with index 0 received.
Checking if port is available -> false
PulseAudio sink details for sink.primary with index 0 is available:
  Output to wired headphone: false
  Output to wired headset: false
Checking if port is available -> false
PulseAudio sink details for sink.primary with index 0 is available:
  Output to wired headphone: false
  Output to wired headset: false
void core::ubuntu::media::PlayerImplementation<Parent>::Private::clear_wakelock(const core::ubuntu::media::PlayerImplementation<Parent>::Private::wakelock_clear_t&) [with Parent = core::ubuntu::media::PlayerSkeleton]