Balor currently has an item you can purchase called the [Fluidity Potion], it does mention it can only be used on Balor, which is fine, however when you leave Balor the item is auto deleted from your bags, which is a minor inconvenience given you had to spend silver to buy them.
Other, minor issue, the wooden bridge on Balor at the Treacherous Crags will dismount you, not exactly sure why it does this and it's a small bridge, so you don't have to run far to mount back up, but it's just a minor inconvenience for no reason it feels like.
These are not major/game breaking issues.