I got to the big chamber, read the journal, and got the sword. I get that you have to swing the sword in the direction that the red lines go, but the panels on either side of the door only go up 2 spaces and stop so they are parallel to the floor. No matter what way I swing the sword they won't go any farther. Does it make a difference when you swing the sword? Like when the wall is glowing or not glowing? Is this a glitch, or am I doing something wrong??