Change the coordinates and the entry ID in your profile to the ones you get when you press target info within hb, with the vendor selected. Than it will work... You have to update the profile or wait till the profiles got updated.
i dont know with the profils .. never have make one .. so can u exactly descripe me what I have to do. My english isnt the best maybe someone can tell me in german?
-Open profile in notepad: Right click > Open with > Notepad.
-Go on WoW and click vendor.
-On HB, look for "Target Info" button
-In notepad profile, look for vendor coordinates and id.
-Swap them with the ones in the Target Info box.