Andor's Trail

Hi. I have NEVER seen that this route (right of my character) was impassable. I cant go through it like there is the wall. Hundreds times before I have traveled this tunned and never seen that this "upper section" of this tunnel wasn't the right way to exit.
This is bug or exit is somewhere else?

If I remember correctly, there's like five different versions of that tunnel. Every time you start a new character there's a chance that you'll encounter a version of this tunnel that you've never seen before.
Replayability!

One of six paths does not lead through that part