Do you have issues with all projects, even the built-in examples/templates?
If it's just this one particular project, then it would be quicker to upload it for us to check.
Have you tried 'File/Preferences/Reset dialogs'?
If still no good, you may need to show us a screenshot of the problem because it is difficult to visualize what the issue is otherwise.
BTW the license has no effect on the program other than allowing/unlocking features.
Also what version of C2 are you using?