Changing the vCPU qty in vCD removes the network connection from the VM in vCenter

This is a crazy issue we've discovered and I wanted to know if anyone else had seen it.

Firstly, we're running the following versions of software:

vCD: 5.1.1.867405

vCenter: 5.0.0 Build 913577

ESXi: 5.0.0 Build 1024429

If you go into vCloud Director and edit the hardware properties of an existing VM (Powered off) any change the vCPU quantity (to anything new), inside vCenter the network status will change to none(inactive) Standard port group.

Even though, before you make the change, the VM is connected to a distributed port group and working ok.

We are posting an SR to VMware now but sometimes it's worth running this by the community to see if other people have seen it already or indeed wish to test it on their deployments.

Thanks in advance