My Music doesn't update

Question

I use iTunes Match and purchase most music through iTunes.  Whenever I go to my music and look at my music is almost always doesn't contain recently purchase music or playlists I have added.  Often for days it doesn't update.  Sometimes powering off and back on the apple tv will help but it seems to be very difficult to get it to refresh or show purchases.  If I go to Top Music and look at a album I purchased it shows Play almost immediately so it knows I purchased it, but the playlists and artists and albums etc under my music is never accurate without multiple attempts.  Any suggestions how to fix this it's super frustrating.

Answer 1

Okay, mine now works here is what I did.
plug in the iPhone, iPad etc
in iTunes select the phone or iPad
Under Summary uncheck "Sync with this....."
Under "Music" uncheck the "Sync Music"
Let it remove all the songs, dont worry it will come back no problems.
Once that is all done all the music on the phone or ipad should be gone.
Now check them both back on and everything should copy back onto it.
Working now !!!!!