I've experienced this with Peons when they were fighting other peons. Tried to run away with a peon that was at mid and it kept ignoring the command and trying to fight back, and froze it's attack everytime and kept trying to re-attack despite me trying to make it run, build something, or harvest gold in the middle of its fight with the enemy peon. I haven't experienced soldiers running to corners on there own yet though. Sounds like expanding 11 is annoying if the person doesn't have to scout at all to find it haha.
