As you may have experienced, you get a lot of "no opponent available" at the very start of the DTs.
The problem is that everybody is clicking the QB at the same time and the QB system doesn't have the time to match-up everyone until the max time allowed to match someone (10 sec).
We are gonna come up with a solution (we need some good night of thinking) but in the meantime, we have fixed the system so it will not create ghost battle that expires before you have the time to join them (at least).
Please accept our most sinceres appologies, this kind of issue cannot be experienced without a "live" system. We obviously expect to fix it asap.