Bug Issue Citrus Engine Box2D-Starling

[donjayespejo]

Greetings,
I'm practicing my bug fixing skills and I think this would be a great start and unfortunately I'm kinda failing at it. I encountered a bug where my character(hero) is standing near the starting corner of the game. Everytime it gets hit by a mob while ducking(pressing the down arrow key), my hero will go through the edge and disappear meanwhile if it gets hit while standing, my hero will just be pushed back but gets reflected by the wall because it's on the corner and which is the right one. So i need your help guys

Standing:

Standing + Hit:

Duck:

Duck + Hit (BUG):