I’ve run into two instances of glitching through walls, both with different effects.
- The first instance occurred when jumping for the Vista in the Western Commons of Divinity’s Reach. I was able to recreate it several times. It’s hard to describe but there was a slightly angled convex seam in which I could keep jumping into and getting slightly higher each time, upon a certain height, I fell through the corner and into and endless free-fall. I was only able to escape by using a waypoint.
- The second instance was in Martyr’s Tomb in the Ruins of Holy Demetra in the Harathi Hinterlands. The Angry Spirit enemies there would sometimes slide through the walls. When they were far enough through, as a Thief, I could use the Steal ability to teleport (shadow step) to them on the other side of the wall. In my case I ended up in a enclosed useless area. I could escape by using a waypoint or using the Steal ability again on another Angry Spirit who was still inside the actual area.
As you can tell, neither of these two situations caused anything game breaking but I can only imagine would could happen in other areas.