iTunes Match Broken After iOS 8 - Only downloads a few tracks, icons spin on every track in library
I have upgraded both my iPad Air and iPhone 6 to iOS 8.1, and iTunes Match is broken in two ways that make it unusable.
First, every single song on both devices (except those already downloaded to the device) has the "spinning wheel" icon as if I tried to download the song from the cloud... but I have not tapped Download on any tracks. The iTunes Store "Downloads" list confirms that nothing at all is downloading. If I tap one of those spinning wheels... it becomes a progress wheel and the track begins to download, and shows up in the iTunes Store's Downloads list. So the icon for every track is just wrong, the little cloud-arrow replaced with a spinning (or sometimes stationary) wheel.
Second, and far more frustrating, is the "Download All" button at the top of a long playlist now downloads only the first 30-50 songs on that playlist. After that it just does not try to download any others, confirmed again in the iTunes Store's Downloads list. Every other song on my playlist has a stationary wheel icon (which is to say, not a spinning wheel but the same icon), and I have to tap every single one of those to get them to begin downloading. I'm going on a long vacation with minimal internet service, I want to download a bunch of music onto my new iPad and iPhone, I have playlists that are thousands of tracks long... and now I have to tap every single song on every single one to download them for offline listening, which is just infuriating.
Help!
iPad Air 2 Wi-Fi, iOS 8.1