I have successfully updated LR and Photoshop to latest version
Photoshop cc 2014 is starting fine
but Lightroom CC when clicked on it I see the welcome screen for 0.5 sec and then it quit
I have tried to reboot, uninstall and re-install same issue
I had the same issue on my MacBook Pro and after some searching, what worked for me was logging out of CC and logging back in. Hope that helps you!
yes indeed it worked
I have quit CC and restart did not solve : but a real manual log off did the work