A khuzait army was in the process of attacking kaysar castle (after the initial siege). I move in to help them with my army and click on the khuzait army where the ui opens up with option to attack, send troops or leave. I decided my odd was not good enought and decided to leave. When I was moving away, the lords army in my army started decreasing as if they were attacking the khuzait army and they stop their walking animation. My army was unaffected by it. Even when I move away and disband my army they stand still till their army deplete to zero. I tried an option where I move my army to breakthrough the siege so that we would be inside the castle but when the khuzait army begun their assault, its an open field battle.