Hi there, i had the same problem, plus my "Preferences" was greyed out. I got on a web chat with Adobe, and it was only then that I realised that I hadn't updated the Creative Cloud App. It was asking for an update, but I had been ignoring it. The reason for this was that I've got older versions of Photoshop and Bridge installed because the latest versions were too buggy. When I saw "Update available" I thought it was going to update Photoshop and Bridge.
Anyway, after updating the Creative Cloud App everything is back to normal. I can see my apps, the updates that are available, and the "Preferences" is not greyed out.
Just for information, the latest version of the Creative Cloud App is 188.8.131.521