Lightroom CC 2015.1.1 won't connect to Lightroom Mobile. When I click the "get started" tab and click the 'sign-in' tab, it does nothing, just closes. If I go to Edit->Preferences->Lightroom mobile, the screen says not signed in. If I click Join, it goes to the Adobe CC site and logs in as me. I can see all my photos via the web and I have a valid subscription.