On top of the filters on the suggestions page in staff there is a pull down for organizing the tabs of the display in several ways. One of them is by 'Library'. This is the only option currently not working. Once you organize by library, the page remains empty.
I've just retested this and I think the reason is we have 2 different forms: 1st form filters on your homebranch by default. 2nd form changes the tabs. Every time the tabs are changed to library and saved, the default setting on the second form returns... and so the filtering and you only see a tab for your own library.
... Changing the tabs should not reset the other filters, but keep what you have previously chosen.
I believe his has been fixed since this was filed :)