Scripts

I have a rather simple question. How can I make it so that after a creature plays a certain animation after losing, it continues to move as it should? I have the following situation: a hero enters zone 1, and a trigger is activated, playing a "joy" animation for the griffin. Everything works correctly, but for some reason, after the animation plays, the griffin freezes in place. What needs to be done so that it continues to move after the animation? And why don't any of the animations work for my fire demon, even though I'm using the same settings for other creatures, and it works for them? Thank you in advance.