We have detected a bug that affects only Windows 64 bit OSs when backed up using OneDiff program. The CID is not updated on first run and the OneDiff cycle always copies all data. XSIBACKUP-PRO 10.1.1 will be launched in short and will contain the bug fix.
Until we release the fix and as a workaround you can:
1 - Turn off quiescing --snapshot=dontquiesce
2 - Use --backup-how=warm