Comment 3 for bug 1052162

> after looking in the dbus log, I am not seeing any trackids.
Yes, it seems the trackid is always the same (you can also use d-feet to quickly and easily check DBus messages).

According to the MPRIS2 specifications, the 'trackid' is required and should be linked to an unique track:
 > If there is a current track, this must have a "mpris:trackid" entry (of D-Bus type "o") at the very least, which contains a D-Bus path that uniquely identifies this track.
  http://specifications.freedesktop.org/mpris-spec/latest/Player_Node.html#Property:Metadata
  http://specifications.freedesktop.org/mpris-spec/latest/Player_Node.html#Simple-Type:Track_Id

Can you report this bug to Audacious devs? It seems they don't use Launchpad: http://redmine.audacious-media-player.org/projects/audacious/issues

Thank you :) (and feel free to report/patch any other bugs or ideas ;) )

PS: @ fabounet: should we also check if the artist/album/title have changed to avoid this kind of problem even if this bug is not due to the dock?