Failure to Synchronize Changes

Question

Hello,
I am fairly new to itunes in general.  I have one machine I consider the master since the files all reside on that machine and it was used for initial configuration.  I had inadvertently double added most of my music library on the master before signing up for Match.  Thus Match also adopted the duplicate song listings.  I have since cleaned up the local library and iTunes on that machine and it now accurately reflects my music library with no duplicates(and yes I did check the box to remove files from the cloud as well).
The problem arises when I access Match from one of my other machines that have no downloaded content but stream my library from Match(like my ipad mini).  All of these devices still show duplicates.  An amusing feature is that only half of the songs actually play.  That is to say if I have a song listed twice then one instance will play and the other will not.  So shuffle mode play is a real treat with delays of up to a minute between songs as it tries to find songs that will actually play.  
I have tried doing an "update Match" but that doesn't seem to make any difference.  What do I need to do to get this all synchronizing automatically or in this case manually?
Thanks.

Answer 1

Hello Jim,
I have not tried that "Shift+turn off", what does it do?
I have already had too much fun with the itunes file system approach.  If I need to create yet another directory for itunes every time I want Match to take an update then I need to re-evaluate my decision to use apple products.
I have tried turning Match off and back on in the settings on the remote devices(ipad and ipod) which did not seem to make a difference.
Nothing is grayed out anywhere.  The master machine has all music listed appropriately with no visible duplicates gray or otherwise.  I then issued the command to update Match which took a while but eventually reported that it was done.  The reduced number of songs did suggest that duplicates had been removed from Match.  But the updates apparently don't push out to the other devices.  Does anything in iTunes synchronize automatically?
Thanks
-Nick-