There’s been areas where certain thinner than normal walls allow shield rush to ignore collision, and it’s not limited to just a single wall, did some testing, but you can charge through until you hit a large enough wall. Couldn’t find if this was a legit feature but figured i’d report it in case it can cause some out of bounds issues somewhere.
In particular, The Imperial dreadnought is a great case in point with how thin the walls are, turns out even with a collision check, if your character technically clears the wall with the latter portion of the animation it pushes you to the other side, allowing to go through slightly thicker walls.