Yeah, honestly, at least for Cactuar, it looks like it's just made things worse. We're all getting 3001'd and can't even join the queue. Seems like there was some bug that let a couple thousand people into the game all at once (I was around 1000 in queue), and it let a couple of my FC in at the exact same time who were also at different states in the queue. Then it disconnected me with an error and then started giving me 3001 every time I tried to join the queue. About an hour later it stopped, and I was able to queue, but I was stuck at position #1355 for over an hour. Eventually the queue started moving again, I got to #1, got an error (I think you always do at 1), disconnected me, and now Cactuar has 3001 all over again.

If I had to guess, I'd say that probably means Cactuar is still over the cap at the moment, and until that cap is gone, none of us are going to be able to log in. That's just a guess, though.