SoapUI Pro GUI does not exit unless i select Exit Without Saving

I have had this since the last release version - 2.2.0. I am now using V2.3.0 and I still see the same issue on my machine. I cannot exit the GUI if i go to File-> Exit or try to click on the close button. I have to select "Exit Without Saving" option to close the GUI.

Note : I have soapui pro installed on other machines that exit fine. I have tried to look at differences b/w the two machines, don't see much in terms of soapui settings etc, but i may be missing something.