It's a bug, On your way to the training area a monster will target you maybe a champion Myangyang or whatever, if you don't kill it right away and you lose it, it will stay at the top of your training area list of monsters to attack.
Stealth Lite Bot Needs:
*Refresh on the training area list
*Auto walk script when you reach town
*Disable the auto stop bot once you die
and as a bonus* Auto buy pots and repair equipment, then return to set training area.
These are just the things I've notice, I'm only level 17 and spend all my money on pots so I wouldn't know about any pet bugs