GetMapServiceInfo problem

Hi,

I'm trying to use the GetMapServiceInfo activity in a workflow, but it fails to return values for several of the output args:

Layer Id = null

Layer Url = null

Map Service Url - this value is returned correctly.

The site is secured, using "windows integrated", and my guess is that the activity failing is related to that. Not sure how to deal with it though. The activity only has two input args, neither of which is a token.... Anyone know what's going on with this?

This is a html5 app and we are at essentials 4.1.2 and html5 viewer 2.2

Thanks