So i've been doing crota quite a lot recently and I have been running blessing of light on defender titan for the entire time. During the first hallway encounter at crota,I popped a bubble and expected the overshield to take the damage for my first hp bar but instead it bypasses that overshield and takes out my health. I figured out that if maybe i try it on the forest of darkness (First part in the abyss) it may change. Well, low and behold, it didn't. Can anyone speculate on this?