Animations won't play in sprite-editing?!

When I was working on the walking animation for Brawn in my new game, HAKK3R, ( I noticed that my animation wasn’t playing when I pressed the play button. What’s going on?

Works for me,
make sure you pause it before editing a slide.

Editing a frame while playing can pause it without actually pausing it,
so you would need to press play twice or just save the animation