
If that is what you are experiencing, you have to use the Creative Cloud App to sign out and then sign back in. Â Crazy I know, doesn’t seem like that should have anything to do with Lightroom crashing when you try to launch it, but Adobe has posted the very instructions on how to do this here.
Bit of a black eye for the launch, but I still think it is easily the best option for photographers to manage and do most post-processing.