Freezing pulse while near obstacle?

Okay im not sure if this is bug, but when there are narrow spots or places even though i cast freezing pulse it seemes that not even 1 is being casted and like it hits the wall. So when im near a door in some dungeon or prision like map i cast FP but can't hit mobs so i die pretty fast. I

ts really annoying, and it would be really nice if it was fixed or changed, cuz other skills that do hit AOE can still go though door or near obstacle(like ts half hits the door or rock and half goes though, while FP seems to be totally unsuable when there is an obstacle near you, not even 1 projectile goes though. Pretty much unsuable in incursions too..