For some reason my bot was at one empty bag slot for awhile and had stopped looting, I manually looted some stuff to make bags full and it still didn't go to vendor/mail. Not sure if it has to get to the end of the waypoint paths first to take the vendor path or what or if it's just the HB update that's done something. I'm pretty sure though when I ran this profile lastweek on my hunter it worked perfectly. Now I'm not sure it is.