If you've recently loaded a new cover image for your book but it hasn't updated on site within 24 hours, please load the image again. This should nudge it through to our system.
Additionally, when a new cover is uploaded to your eBook details page and you have uploaded your content as a Word file, this only updates the cover image on your book’s product page. The new cover will not automatically be added inside the ePub as well. After uploading a new cover for your eBook, you will need to regenerate the content by re-uploading your Word file to ensure the new cover is then inserted inside the ePub.