I think I've come across a client bug in vCenter 6.0
When using the C# client, if you right click on VMs, it shows I can "revert to current snapshot" or I can "consolidate" the VM, however if I look in snapshot manager, there is no snapshots available. If I open the settings on the disk, there is no snapshot files. If I click the options, they show in the task bar completed immediately.
When I use the web client, the options are greyed out.
I wrote a quick post about it here, I would presume others have seen this as well?