I do have the photographers version of the Creative Cloud which included Photoshop CC 2014 and Lightroom. Everything was working just fine until I upgraded to Lightroom version 5.6. Now when I try to load LR, the slash screen shows for a second then disappears and LR does not load. This occurs on both my Mac (a Mac Pro and a iMac). I uninstalled LR and had creative cloud reinstall but still the same thing is happening - Splash screen for a second then nothing. Again, this is happening on both Mac's. Photoshop CC 2014 I working just fine.
Before I call Adobe, any ideas here on this issue. BTW, Creative Cloud App states LR in up to date and installed.