Not sure what's changed, but for the last day or so, when I click on Library in the upper-right corner, I just get grey windows for each of my sub-libraries, and when I click on one of these I'm greeted with a blank page. No links to download or anything.
I'm on a Mac running OS X El Capitan 10.11.1. I've tried clearing my cache in Safari, clearing cookies, etc. I've also tried in Chrome and gotten the same result.