This keeps happening

Every time I try to animate an image, Sora keeps it in the first frame and then does something really weird. It doesn't follow the prompt or just creates some weird movement. In this example I didn't give it any prompt. Anyway, I have tried this with several images and it always does the same thing. Keep the image for a couple of frames, then do whatever it wants. NOTE: In short, why does it freeze the image in the first frame and then change everything? Any ideas?