It looks like something related to the app having to phone home to get some kind of an answer - permissions? Anyway, bottom line is that it takes time and the functionality isn't available at first. Poor design... Very disappointed...
I'm having this issue as well. The grey'ed-out notebook also has a lock icon next to it. Nothing is clickable. When I right-click on the notebook none of the context options appear to address this issue (I'm looking for "unlock" or "properties" or something similar).