Updated to R63.21 Windows 10 using Quicken Deluxe. Backup using Create A Complete Backup option.
They have now put a circle popup on screen showing backup progress, but it never goes completely around and disappears without saying backup completed. It does start a bar going around the popup circle, but it is barely visible and the whole popup circle goes away before progress bar goes fully around the popup circle. Happens too fast to get a snapshot picture.
Seems it should show that it completed successfully.