My libraries are still blank after trying all the suggested options, replacing cache, manually installing app, cleaning creative library, restarting, etc.
All I see under Libraries is blank, solid grey! Even if I click to Create New Library, nothing happens! Tried restarting, reinstalling, reinstalling CC, reinstalling Libraries... I have work to do and need the stuff in my Libraries!
I have been able to fix this issue by doing a complete uninstall, deletion of C:\Program Files\Common Files\Adobe , C:\Program Files (x86)\Common Files\Adobe and C:\Users\USERNAME\AppData\Roaming\Adobe . Then reinstall, maybe someone will find an easier way.