The bot eventually just flies around targeting mobs but not attacking them. I have travel form disabled in singular and use ground mount set to a specific ground mount. I also set bot config to "Ground Mount" mode and still the same thing. It seems I'm having these sort of issues every time I try to farm old content. edit: If I disable "Use Ground Mount" it still tries to mount up when I have a mob I need to avoid so it sits there endlessly trying to mount when it's in combat.
Similar things were happening on any of my old content farms (haven't tested draenor yet don't have flying). The other farm I was doing they would farm fine for a certain amount of time and then it would just fly around without attacking nearby mobs. If I dismounted it would start attacking mobs again.
The following hotspot from the profile is not on the ground: Code: <861.0923, 2193.131, 300.7528> This means HB cannot ground navigate to it. HB tries to recover by switching to flight but as you can see it will not land to pull mobs. A simple fix on your side is to adjust the hotspot so it is correctly grounded (in this case the Z value at that point is around 288 rather than 300). There were some changes required in HB3 which is why you are seeing this behavior now - we don't accept points that are off by large Z differences anymore.
Thanks for noticing this I originally wanted a flying grind but it looked kind of botty so I put it to ground mode.