Instanttiating crash on Master profile but not on debug or release (WP8/VS2012)

Hi,
I am having problem with this line of code when I am deploying to my windows phone with the Master build configuration
GameObject newSkeleton = (GameObject)Instantiate(Skeleton, position, transform.rotation);

I do not know what is the error since all debug options are off with the Master configuration. It works fine in debug and release configuration. Anyone has an idea why?

Thanks

I found my problem. The Skeleton prefab had a BoxCollider2D (for ground checking) with a height/width of 0.0001. changing it to 0.5 fixed the problem.