Moving a VM to a different datastore

Hi,

I was running out of space on one of my datastores so i descided to move one of my VMs to a different one.

I have ESXi v5.1 with Essentials plus so i don't have Storage vMotion so i shut down the VM and then Migrated Datastore to the new space.

Everything ticked along (quite slow) and eventualy finished without error.

I then restarted the VM, also without error.

Now when i go to Inverntory, Datastores and look in the new location i can see the server with all the expected numbers.

But, if i look at the OLD location i can still see the server listed.  also the Used space numbers look odd.

If i shutdown the VM them both locations stop.

I have moved 3 other servers in the same way, 2 worked without issue, 1 produced the same result.

I have refreshed the datastore view without change.

Any ideas what i may have done wrong or what i can do to fix it?

Thanks for your time

Ian