Chapter 12 Professional Courtesy Bug

[Aillure]

Everything is all fine until I have to speak to Han Yunsu in the Blackram Trove. For some reason, it isn't letting me go up the stairs, does anyone know as to why it isn't letting me do that? It has already happened on two accounts and I cannot figure out why. 

[Unsheath]

Just in case you haven't figured this out yet, there's a small area on the left side of the stairs where it pushes you back.

 

Try sticking to the rightmost part and you should be fine.