You've touched on one of the other problems I never experienced until the 5.6 upgrade: I can't run reports (at all) with the Reports tool. Reports run forever (open case 525068) or I get an "Unknown Database Connector Error" even though the Data Source is correct. I did finally get the DB Maintenance report to run; it looks like we're getting ~ 27M events per week.
Pumpstatus shows nothing waiting.