vCloud plugin finder timeout

In my workflow presentation I'd like to have user type in a VM name and select it from a drop down list into array. I am using Array/vCloud:VM as input. However, vCO presentation search list is timing out with this error:

vCenter plugin seems to be producing results but at this time I need to work with vCD objects.

Has anyone seen anything like this? (vCO 7.1/vCDplugin 5.5.1.2).