I'm guessing the launcher arm bent and this was the result of some sort of contact between the arrow and the rest. I have heard of this on a couple of occasions. Usually this is the result of the launcher arm not elevating all the way when the bow is drawn and thus resulting in contact. I'm sorry you're not having good luck with the DZ. I believe this is an awesome rest and just may need some adjustments.

At full draw is the launcher arm all the way up? If not I'm pretty sure that is what is causing contact and resulting in a bent arm.