Hero Widget not saving after edits

Hi,

Firstly thanks for your amazing tools and helpful videos.

I’ve tried using the Hero widget both on its own in a new page and in a prebuilt page template.

I’ve followed your video tutorial exactly and when I am done filling in the headlines, buttons and background image and click either the preview or done buttons, nothing happens – the page just sticks. The x on the top RHS also sticks and the only way to exit is to press delete.

Is there a reason this would be happening?

Thank you!