This has been fixed
Download and install the latest driver update
Close all running programs, restart the product and try to run the backup plan again
Cloning fails with “Error code: 10 'File system error is found' with extended code: 458,776 'MFT bitmap corrupted”
Corrupted MFT, Run List, Block Bitmap or Index causes backup in Sector-by-Sector Mode. The workaround is to disable "Shadow Copy Optimization Writer".