They really should have just taken the game down for emergency maintenance. It's been almost twelve hours since early access started and this problem has existed ever since the initial rush began. I went off to do other things in-game, I came back and it was still an issue. So I went to nap for a few hours - then I woke up and it ended up still being a problem.

I also tried the 'queue in single file' thing - that didn't work either.