Everytime when i go there, the game would crash and say that the file has ended. Kinda annoying for now as i am doing a quest that requires to go there afew times.
Not sure if it's the same situation, but I almost always D/C with some error message when visiting Grendel, when on a mount. Other times, it's less likely.
Usually that bug is when you have an active job advancement quest with that NPC. After you accept the quest it shouldn't d/c you anymore (except for when you have to see him to job advance again).