My friend and I were doing rdf, but it bugged. For over a day, any time either of us joins the queue with less than a full group, it shows the queue as dps (me) plus healer (friend) waiting for 1 day + (the amount of time since the bug). Going on two days, we can only do dungeons by getting five members. Halp?
For now I would suggest looking on global for additional members, creating a bug ticket if this is indeed a bug, and seeing if queuing alone makes any difference