Yes, Kindle cloud reader has updated recently. Please just download the latest version of Epubor KCR converter to handle kindle cloud reader books:https://www.epubor.com/kcr-converter.html
For downloading kindle cloud reader books, please just click the book cover to open this kindle book, and a downloading progress bar will show at the bottom-right corner. Just keep this book open until this the downloading is finished. Restart kcr converter to convert kindle cloud reader books.
1. Please ensure your kindle cloud reader books have been downloaded completely. To check this, right click the book cover, you'll see "Open book" and "Remove Book“ option. Otherwise, your books are not downloaded successfully. Please keep the book open until it has been downloaded successfully.
2. Please install the latest version of KCR converter. Here is the download link :
Windows: https://www.epubor.com/kcr-converter-download.htm#os_Win
Mac: https://www.epubor.com/kcr-converter-download.htm#os_Mac
Any more problem, please feel free to contact us via epubor.iris@outlook.com

When I visit the Kindle Cloud Reader on Chrome or Edge, sign in, and open a book, I am not seeing the download process on the bottom right hand of the screen as indicated by the video.
Please advise.