When I try to play with that NPC, he just do small talk to me, and I completed must of the Hildibrand's quests.
I'll attach some screenshots:
https://dl-web.dropbox.com/get/Captu...zVCSi78T38JrHg
https://dl-web.dropbox.com/get/Captu...w5DvhD-7ryLJEQ
https://dl-web.dropbox.com/get/Captu...4UPQjbd_f2E54w
Thanks for your attention :)