Continuing the discussion from [External Drive not Backingup files]:
Hi @CeeJ,
WD Backup has reached its end of support life cycle.
It is recommended using the built-in utility from Apple for backing up a macOS computer. Please refer to the article macOS: Time Machine Backup and Restore to a WD DAS]macOS: Time Machine Backup and Restore to a WD DAS
For windows : File History Backup and Restore to a WD DAS
Link: Windows 10 & 11: File History Backup and Restore to a WD DAS
As an alternative: AcronisTrue Image for WD https://download.wdc.com/acronis/AcronisTrueImageWD_WIN.zip
