I checked out your log file. Looks like it might have failed to leave the instance on one run, and looped back and moved to an invalid area within Stratholme when it thought it should have been outside. There are redundancies in place to avoid this, so I'm not sure SPECIFICALLY how or why it ended up on the living side, but it definitely did not enter through the entrance as far as I can tell, but rather it backtracked through the King's Square Gate. I added in a loop so that the bot will attempt to leave over and over (once every 20 seconds) until successful once the instance is complete. It will be in the next patch.