When playing through mission 11 on Human mode my son gets to the second room with a trapped soul in it, just after the ghosty guys blow open the doors. There is a blue vine gate that the black stuff covers up. A bunch of enemies pop out of the ground, he kills them and the music stops, but the door stays covered up, he can't shred the vines.
When I played through on regular and hard mode, the doors uncovered and I think I just continued onward but can't remember if I had to do something to get the door uncovered. It seems like a glitch to me, reseting and powering down the system do not change the outcome.
Is that the mission where Dante goes back to The Order's base to rescue Kat? Try going back a bit and then coming back to the spot. This happened to me as well. --- My Resident Evil 6 Review| My XCOM: Enemy Unknown Review http://bitly.com/Z2CT6n | http://bit.ly/RJGjrn