This morning I cloned a powered on Windows 7 VM using the vCenter 5.1 web client. The clone operation completed successfully. However, now I can't find the new VM anywhere in the inventory. I checked for, and found, the new folder and appropriate files in the Datastore. I tried to manually register the VM and received this error: The Specified key, name, or identifier already exists.
Switching over to the standalone vCenter client, I can see the new VM in the inventory, power it on, and console into it. I have never had this problem before.
What would prevent the Web Client from seeing this new VM?
I have tried refreshing the web client view and closing, and reopening, Firefox.