Comment 8 for bug 406231

No, the "Now Playing" is submitted at the beginning of playback. That's what you're seeing when it says this:

INFO : Attempting to submit now playing information...
INFO : [AS]: Submitted 'now playing' succesfully

The actual track played information isn't submitted until after track playback stops, and only if the user listened to 240 seconds of the track, or length/2. You can see this in the audioscrobbler plugin, __init__.py:

    def on_stop(self, type, player, track):
        if not track or not track.is_local() \
           or track['playtime'] is None:
            return
        playtime = (track['playtime'] or 0) - \
                (track['__audioscrobbler_playtime'] or 0)
        if playtime > 240 or playtime > float(track['__length']) / 2.0:
            if self.submit and track['__length'] > 30:
                self.submit_to_scrobbler(track,
                    track['__audioscrobbler_starttime'], playtime)

        track['__audioscrobbler_starttime'] = None
        track['__audioscrobbler_playtime'] = None