I just had a customer have an issue I've never seen before. He created a VM and tried to power it up, but the cluster ran out of resources (memory) to power it up. After that was corrected, the engineers shut down an old backup proxy VM to free up memory, the vApp disappeared and the guest OS customizations didn't process to set the password on the VM, and we could not force guest OS customizations as the selection was grayed out. It also took several tries to get it to completely power down, as the guest OS would shut down but the VM stayed powered up. We ended up having to delete and rebuild the VM (it was new anyway) so it wasn't a long term issue, but I am wondering if anyone else has run into this before.