Flooded cave invisible walls

While doing the quest for the spirit in Crestwood to kill the rage demon in the flooded caves I found a wall of sorts. Directly past the rage demon area when I'm walking down the hallway towards the rift that the townspeople asked you to close I get stuck. 

It's very odd, everything still works, but my character freezes up. If I select another character it unfreezes and my guy can move out of the freeze zone and then I can control him normally until I go back into the zone. Its directly past the first turn in the hallway and I've tried using Blackwalls charge ability which does in fact allow him to go through the wall, however I have to select another character and allow him to go throuhg the wall himself with the AI leading him.

However, after the charge is over he walks back to me normally, but if I select him while he is still in the "freeze zone" the game will crash. I cannot complete this quest since the rift is inside this "freeze zone" 

Everything acts odd near this freeze zone, such as lag spikes and abnormal camera movement.

PS- PLEASE FIX THE COMBAT AUDIO BUGS! ☹️