Porto, following picture of the situation.
Now there's something strange there, note that it has 4 deltas, only hinting that the vm then has two virtual disks, but only have a disk in the properties of vm and 0 MB, or the customer can tell because it is so.
The delta that Vmaware looking 000004.vmdk is not in the folder, let alone a possible 000003.vmdk.
What do you think?