If you haven't noticed, Arenas 11, 12, and 13 are out of order. The order actually is 11, 13, 12. For the sake of simplicity, we're going off of the name and not the Arena's place in sequence. So, as an example, Arena 13 will still be submitted under the level "Arena 13" regardless of the fact that it's not actually the 13th in sequence. If this ever gets fixed I can just change the names around.

Edit: it has been fixed so make sure to double check you are submitting to the correct Arena.

I noticed that.