Use Case Scenarios - Generate Diagram

[WBRenfro]

Newbie
I've created scenarios in my use cases and then created activity graphs to show the scenarios graphically.  Yesterday EA created an activity under the use case labeled 'Scenarios' with an activity graph and the scenario elements under it.  The scenario graph then printed out in my report.  Today, when I updated a scenario, I clicked on Overwrite Existing Diagram instead of Synchronize Elements.  This created a new activity labeled with the Use Case name_ActivtyGraph instead of Scenarios.  I can't get this to appear in my Use Case report.  I also can't regenerate the Scenarios activity now, even if I create a new Use Case.