Are you using Process Version 2012?
Are you running Lightroom CC 2015.1?
If you have the subscription version, go to the help/about dialog and make sure LR is running in CC mode (2015.x.x) and not 6.0 mode (6.x.x).
Mine swaps modes every time it asks to login for licensing checks (far more frequently than every 30 days). After logging in (having not been logged out to start with), I need to restart LR to get it back into CC mode with all the features enabled.