Review the following section for troubleshooting the issues encountered when you export or import migration data on your Migrate server:
Issue: When you refresh a VMware ESXi Server target after you have exported and imported the migration data, the VMware ESXi Server target might fail to refresh in the very first refresh attempt because of a timeout issue or failure to discover this target server. Consequently, you cannot migrate a workload to this target unless it is successfully refreshed.
Workaround: Refresh the VMware ESXi Server target a couple of times until it successfully refreshes.