Are you on a Windows or Mac platform?
In which version of Flash Professional you are facing this issue?
Have you tried launching the application after clearing your application preferences?
I am on windows.
Its Creative Cloud Flash Pro. version 184.108.40.206
I actually just tried setting the "work space" and it worked! Not sure what that was all about...
Glad to know that it worked for you!
Also just want to inform you that we have released a new version of Flash Professional CC in June 2014 (Flash CC 2014 - 220.127.116.11) with a set of new features and bug fixes. If you are already a create cloud member you are entitled to the latest version. For more information about the latest release, please visit