Character disappearing after trying to animate it

Hi everyone!

I'm very new to Adobe Animate and have watching dozens of tutorials on it. But I've got a problem. 
When there's no keyframes being made, my vector character works fine. But when I go to add keyframes and scrub time, and then try to actually animate the character, the part I moved stays but the rest of the character disappears. I don't know if I'm doing something wrong or if there's something wrong with my character, I'm just not sure. I started my 7-day free trial period yesterday and I want to use that time to learn this program before deciding whether or not this is the program for me. Any help is definitely appreciated! Thanks!