I have saved a project unsing 1.0.4 in FL Studio. After changing my login password, FL Studio froze when trying to load Vital (either in an the existing or even new project), I was not asked for the login data, FLS just hung.
Found a solution myself:
I had to go back to 1.0.3, then I was asked for the new login, and afterwards could go to 1.0.4 again. Now it’s ok.
So something seems to be wrong with the login.