Server Automation SiteURL parameter fail

Has anyone tested Server Automation patching with v10 yet?
I upgraded last week, and now an unable to run an SA job that has a patch baseline using fixlet 137 (Dynamically run baselines from a site). Getting error "SiteURL parameter was not found in Step xxx. Setting step to failed"
This is on a job that we have used for 2+ years on a monthly basis.

The only thing I can see is that the step is looking for the site url using the masthead root server name, which is different that the root name due to a rebuild. There is a host file in place allow the redirect that has worked previously for 2 years.

Tried 3 versions of SA (9.5.52, 54, and 55) no change.