Creative Cloud Desktop stuck, cannot log out

Hey guys

we have the problem that the email adress associated with an adobe account was changed by the University which provides it. The person is able to log into the creative cloud within the browser, however the Creative Cloud Desktop app is stuck in a log-out loop. It immediately goes to "there was an error please sign in" and whenever one presses the sign in button, it jumps back to this error message instantly, and does not prompt for any account details.

We cannot access the preferences, since they are greyed out

We cannot log out from any adobe application, since it just throws an error about not being able to connect/network issues.

We tried uninstalling the Creative Cloud Desktop application with the uninstaller, we tried deleting the OOBS folder like some posts suggested, we tried uninstalling anything adobe related with the Creative Cloud Cleaner application, and reinstalling the Creative Cloud Dekstop app... It still does the same thing. 

Any ideas? It's running on Windows 10.

No offence, but wtf is this and how can it be so stubbornly stuck on something that should simply prompt a re-login?!