[Res]Problems while renaming service

Please do not mark this as resolved. There is a new problem which I believe is related to this one. After creating a new REST service using the right-click menu option 'New REST Service from URI' I have added a new resource. Under the resource I have added a GET method. Under the GET Method I have created a request. However, I cannot open the request editor, it simply fails to load. Opening the request editor for an existing test works perfectly but adding any new one does open the request editor. I have tried shutting closing and re-opening SoapUI Pro as well as restarting the machine it is on but this does not work. The only way I can get around this is to rename the REST Service so that it begins with 'http://'. It will then allow me to open the request editor. This, however, is not a satisfactory workaround as I need to be able to give everything a friendly name rather than a URI. The 4.6.3 release really seems to be quite clunky. What files do I need to back up in order to rollback to 4.6.2 as this is causing me delays on a time-critical project that I can ill-afford.