Hi Steve, the issue with track order seems to have resolved itself without the intervention you suggested, there are however other issues with the new version of the music player and the interaction with iTunes in general which you may or may not have come across recently, I do not expect you to supply an answer to these, I think going forward Apple need to acknowledge these and rectify them in turn, for instance, when downloading new tracks from say, Amazon, the tracks do not appear on the iPad and/or iPhone but successfully appear on your Apple TV airplay listing, necessitating a re-boot on the former devices, before the update time was when you had to logout and login again on the Apple TV to see the album artwork you had so painstakingly worked on to appear, this process has now been speeded up so that the artwork appears immediately with the tracks, however the iPad app crashes if it is presented with too much hard work to process, have you experienced this at all.
Regards,
John