I found a fix on the Knowledge Base that seems to work. The issue is the iTunes Store Cache. After doing this, I was able to upload some mixes I was working on (so obviously they are not on the iTunes Store)
- Turn off Match
- Open Preferences > Advanced > Reset iTunes Store Cache
- Relaunch iTunes and Turn Match On.
boom.
o my dear iTunes. Once you were so easy to use. Now I just don't understand you anymore, I keep getting duplicate tracks and tracks with an exclamation mark (file lost). Such a pity. I will avoid you and have given my music love to Spotify.
If you're using Spotify, Rdio, Beats, or whatever, I can't see why you wouldn't switch to Google Music All Access. I have everything I need in one place. No more jumping from app to app to get all of my music.
some of us had this problem almost from the beginning someone on the apple support forums figured out that if you put an upload bandwidth limit on your internet connection (say 80% of your max UL bandwidth) that things improved immensely. i've been running like that for about a year now and have not had any more problems uploading tracks to apple's cloud (it's really amazon's cloud which is somewhat embarrassing)
i last uploaded tracks about 4 days ago with no problem
iTunes Match is an issue itself.
TIme for people to switch to Google Music
For three or four days watching this problem. I do not think that this is due only indie musicians. Absolutely the same situation occurred several times when I try to add my own digitizing (ALAC) Yes, Led Zeppelyn and so on. Just could not get into the cloud albums transcoded from FLAC to ALAC (FLAC bought on HD Tracks, produced transcoding program MAX) key problems solved "in Russian," downloading from torrents such as handing out albums purchased in ITunes, then delete them (without removing it from clouds), then again "fed the" ITunes my digitizing. Excuse me for my english, it's Google