I want to know how to force iTunes Match to refresh meta information, assuming it uses cached, outdated information.
This is an album in iTunes on the Mac: Note it has 21 songs.
What is supposed to be the same album on my iPhone:
There are a few things wrong here:
- Album title: (Deluxe) suffix on the iPhone (first screen)
- Only 20 songs here: Song #8 is missing because it's part of another "album" (second screen)
- Strangely enough, the single's "album" is grouped under M for no apparent reason (last screen)
How this came together:
- I purchased the single first
- Purchased the album later
- Automatic Downloads were enabled for Music in the iTunes & App Store settings on the iPhone
After I purchased the album, I updated the meta information on my Mac to make sure I have one album, but it never got updated on the iPhone (it did, however, on another Mac). Things I've tried to resolve it:
- Delete/redownload the files on the phone
- Went to a Genius who disabled/re-enabled iTunes Match, which completely broke everything (only a fraction of my library was showing). After a mix of disabling/enabling/rebooting I got to the same state as before.
It's not the only album that I have this problem with, but it only happens to albums that I've downloaded from the store*. After turning off automatic downloads for music, it hasn't happened again. For some albums I have had problems with, the issue has resolved over (quite some) time automatically - for others it hasn't. For the majority of songs, when I edit their meta tags, the changes are synced without problems.
Which leads me to the beginning of my post: Is there a way to delete any local caches iTunes Match may have on the phone? Apparently, disabling/enabling iTunes Match doesn't do the job, although it takes a while to re-initialise.
I use iOS 7.0.4, but the problem has existed for a while, I believe even before iOS 7.
*Note: I guess the same problem could occur with other music, but it never downloads automatically...