hitTestCircleRectangle is returning false. (It shouldn't do this)

[CloverFeywilde]

It can have the value "topLeft", "topMiddle", "topRight", "leftMiddle", "rightMiddle", "bottomLeft", "bottomMiddle", or "bottomRight". If there’s no collision it will be undefined.

Yet half of my collisions are turning up as false. I truly don't have a clue as to why this would be. If there's no collision it should be returning up as "undefined". Either way hit() detects a collision, but when the hitTestCircleRectangle() is run, sometimes I get false.

Any ideas, Maybe this is a bug?