Anyone having issues with the doors being blocked after you open them with the scorch cannon? I shoot the appropriate conduit with a fully charged scorch cannon and the door opens but when I go to enter the room, it is blocked by a shield/force field and I can't get in. I sometimes have to repeat it three times before I can enter the room. What am I missing? I get to the door immediately after it opens but I still can't get in. Any help is appreciated. Thx.