In case you haven't tried this yet, Object Logging can be your friend. In OMW, add the DS to your Default Project, then use the Logging row exit, putting the asterisk wild card in the Project Name edit box. I'm guilty of abandoning a project by moving it into 91 status, thereby putting any new objects it had into jail. Otherwise, you can query SY9xx.F98222 in databrowser or with SQL to see if it shows up with a blank project. Good luck!