playing Imperious PTR patch simply against all bots - AI got stuck trying to repeatedly pick up the turret from top lane and then stopping short (therefore getting stuck) until opposing team came within distance.
I had the same issue, only it wasn’t just the turret camp. The bots would kill the elite merc camp then completely ignore the biotic emitter it dropped. There had to be at least four biotic emitters just sitting there in my last game (was playing abathur).