The two attempts to edit the video I created with a text description resuulted in absolutely no changes

I used a text prompt to describe the 8 second video I am attempting to create. In the video a hot dog is supposed to morph into a bacon cheeseburger.  Instead of a “morph,” a crude ripple wipe (see attached screenshots) from one replaces the entire image with the other. I added clarifying language and created a second version which turned out exactly the same as the first (and cost another 400 credits).  I then attemted to edit the second video with a detailed descritpion of the changes I wanted. The resulting “edited” version was identical to the first two with the exception that the last second was missing. This completely unresponsive “edit” cost an additionsl 250 credits.