From the given error message, have you checked below items already?
1) VMFS_SAS04 - Data store is up and accessible
2) EngineeringSVR.vmdk - is still available in the Data store
3) All three ESXi servers have access to VMFS_SAS04 data store?
4) Have you tried to migrate to other leftover host?
5) Make sure no other operations are running for the VM
Also share the vmware.log file from the VM directory to trace the root cause