For me, it doesn't recognise that i am logged into creative cloud, i have to open dimension, log out of cc, then i have to log back in, then dimension closes because it's noticed it's logged out, then you have re open dimension for it to finally recognise that you are logged in.

It is a massive waste of time and puts me off wanting to use it, especially when all i want to do is send my boss a 3D version of something i am working on for him to spin it around and show clients.