Adding Action Buttons on Thank you page not working

Hi! I can't add an action button on as custom thank you page.

Hi Ingrid,

Thank you for reaching out to Jotform Support. Could you send us a screen recording of what is happening so we can have better understanding of what the situation is to help you? If you can take a screenshot of what’s happening, that will help us to better understand what’s going on. We have a guide about how to do that here.

We'll be able to move forward once we hear back from you.