DPA 8.3 and DB2 9.7
I think I see what is happening. When I look at the COND table, DPA is only reporting for the database recorded in CONN_DATABASE that was used when I registered the Instance to DPA.
It won't let you register the other databases as the registration is per instance - This database instance is already registered in this Repository.
Also applies to the Resources tab - the graphs for DB Buffer Pool Hit Ratio, DB Package Cache Hit Ratio & DB Catalog Cache Hit Ratio should have multiple databases, but they don't.
Same with the Sessions tab graphs.
(just looking at the built-in Wait Time Alerts, looks like more issues around this too)
I'd call it a bug. I'll open a support ticket (681078)