When migrating VMs with the option "Change Compute and Storage vMotion", the datastore cluster on the target side is missing.
Right click VM > Select Migrate > Select "Change Compute and Storage vMotion" for a VM > Datastore clusters are not shown.
When selecting "Storage vMotion", datastore clusters are shown on the target side.
Workaround:
Select datastores manually when completing "Compute and Storage vMotion".