Redoing Certifications Not Working

Hi,
I want to redo some of my certifications as I’m feeling confident that I can make them better. When I update, save and re-run the tests, there’s no change to my certificate from what was originally there. Am I skipping a step?
Thanks

when you pass the tests and get the modal, are you pressing “Submit and go to next challenge”?

That did it, thanks @im59138 !