Can you run the below commands from the VM folder and share the output? I don't see a flat.vmdk file in the above screenshot.
ls -lrht *vmdk*
grep -i vmdk "WINSvr.vmx"
vmkfstools -e "WINSvr-000002.vmdk"
vmkfstools -e "WINSvr-000001.vmdk"
vmkfstools -e "WINSvr.vmdk"
Cheers,
Supreet