iTunes Match playlist deletion - a way to fix
This won't fix the underlying issue, but if you don't mind not using match until Apple fixes the mess, this WILL restore your playlists:
I have been experiencing the deletion of play lists in iTunes no-thanks to iTunes Match. Reading the online postings gave hints but not a workable solution. I finally nailed it. Here you are.
For the record, I am using a Power Mac G5 running OS 10.5.8 (Leopard) and iTunes 10.5.3, and an iPhone 4S running iOS 5.1 (same problems were happening with iOS 5.01).
You will need to make changes on your computer and your iOS 5 device (iPhone, iPod or iPad).
Dont have the iOS device connected to the computer for this operaition. Go to the Settings panel, scroll down and select Music, and turn OFF iTunes Match. That should do it for this device.
For the computer, there are multiple steps:
First:
Quit iTunes if its launched.
Turn off your internet connection. I did this by going to the System Preferences > Network pane, clicking Built-in Ethernet (which is how my system gets to the internet), then clicking the Configure dropdown, selecting Off, and finally clicking the Apply button. The green indicator next to Built-in Ethernet should go red.
If youre using a wireless connection, then turn it off using the top menu bar icon for airport/wi-fi conneciton. Test by launching a web browser and trying to find a page; if you cannot browse a common page like Google or Yahoo, you can proceed here. If you can browse, discover how you are getting that internet connectivity and shut it off.
Second: Go to a Time Machine or other backup of your iTunes folder and grab a recent copy of the iTunes Library.itl file from a time BEFORE the iTunes Match issue arose (e.g., a copy WITH your playlists intact). I also grabbed the iTunes Library Genius.itdb and Itunes Library Extras.itdb files just in case they were necessary. Copy this into the current iTunes folder.
Third: Launch iTunes (internet still not connected) and verify your playlists are intact. If so, then click the top menu Store > Turn OFF iTunes Match. (Make sure you have turned it off by again clicking Store. It should now read Turn ON iTunes Match
but dont drag and select this).
Fourth: Reactivate your internet connection. Either go to System Preferences > Networks and use the Ethernet > Configure drop down to select DHCP (or whatever setting you first had going) and click Apply, or use your Wireless/airport icon in the top menu to turn this connection back on.
Finally, connect the iOS device to your computer and sync it with iTunes to get the songs/playlists you want transferred.
Hint: My iTunes library is way too large to fit on my 32 GB iPhone, so in the Music tab for the phone in iTunes I uncheck Entire music library and instead check Selected playlists, artists, albums and genres. Then I can manually check the specific playlists I want loaded on the iPhone. Once thats done, I click Sync in iTunes.
Further hint: If the iTunes Library.itl file you restored was saved before you loaded recent apps on your phone, you will perhaps get a message that this sync will erase apps from the phone. Dont worry about it; youll have a chance to also back up recent apps during the sync; do that. Then they will be preserved on the phone.