The error is reported during backup (VMware VADP backup sets). 


A known VMware issue described in the VMware KB #2090639 "QueryChangedDiskAreas API returns incorrect sectors after extending virtual machine VMDK file with Changed Block Tracking (CBT) enabled" 


Follow the recommendations available in the VMware KB #2090639 (apply the corresponding patch for the ESXi version running on the backup source VMWare environment). 

The link for this KB is: