QueryResultNotFoundException was thrown when a workflow is invoked in vsphere web client and select a cluster

Hi,

I'm using vsphere vCenter 6.0 and vRealize Orchestrator 6.0. I register the vRO to the vCenter in web client vRealize Orchestrator plugin.

In vRO 6.0 here is a workflow "Add host to cluster" under vCenter -> Host management -> Registration. I add this workflow in the web client so that I can invoke it when I right click a cluster.

I run this workflow and select a cluster in the first step and click Next. An error occurred like this:

com.vmware.o11n.sdk.queryservice.QueryResultNotFoundException: Unable to find object of type 'VC:ClusterComputeResource' with id 'WIN-VCENTER6.MYDOMAIN.COM/domain-c28'

I tried some other env but get the same error. I also tried vCenter 5.5 and vCO 5.5 and it worked well.

Does anybody know if it is a bug or if I can avoid of this error by configuring my env? Thanks in advance.

Regards,

Vicky