Yes, I seem to be in the same boat with my iPhone 4 and my Macbook Pro. Worked ok last night, after I bought an album from my phone to test the iCloud thing, I synced it today and am getting the -50 error. Hope they fix it soon.
Huh, kind of silly that you can't edit your post. Anyway, I might add that i tried the iCloud thing and have 16 songs that are just sitting. Sounds like the iCloud thing is causing a problem with music syncing...
Look at my previous post. Depending how many cloud songs you downloaded will determin how many sync attempts you eed to get rid of all the songs.if you have 10 songs you need10 sync attempts plus 1 to succesfully sync.
That worked. Had to sync as many times as the number of tracks I downloaded. Just watched the particular songs (thankfully only one album) disappear one by one by one. They didn't show in my iPad playlist, either.
Had the same problem. Thought my experience would be helpful. I had to go into iTunes and tell it to sync the album that I downloaded via iCloud to my iPhone so that it would see that it is ok that the song is there.