I attempted the arena and completed the level 9 Recruit difficulty. I received 165 battle marks but I did not receive ANY rewards.
In fact, as i was receiving my experience from the victory window, I could see that in the background the match seemed to have started all over again because I saw my party facing off against some bats and spiders. After receiving my exp points and pressing continue, I was booted out all together and into the world map. I checked my inventory and the items were missing. I entered the arena and saw the rewards were already marked off as completed.
I love the game and have been looking forward to it since I backed it, but I do not plan to continue until this is resolved. I do not want to move on without receiving the “Chain of Prosperity” and Calibretto’s “Volcano”.