I just tested the offline messages functionality of Spark and there seems to be a problem.
I logged off, and then had another user send me 2 messages. The messages show up in the database correctly (jiveOffline table). When I log back on to Spark the offline messages are not displayed, but the debug window shows that they were delevered:
The sending client was Exodus, I’'m not sure if that has anything to do with it.