Update a vDC with a running VM

Hi,

I have a problem executing the built in vCloud Director workflow "Update a vDC".

It always fails when there is a running VM inside de vDC with the following error: "Unable to update the Organization VDC configuration because the new value for CPU resource is less than current usage by all Virtual Machines within this Organization VDC.; majorErrorCode=400; minorErrorCode=BAD_REQUEST; vendorSpecificErrorCode=null; (Workflow:Wait for a task / Throw exception (item5)#1)".

If I power_off the VM and re-run the workflow, it works perfectly.

Can you help me please?

Thanks a lot,

Damian