Hi and thanks for the question and giving OME a try.
I think MS changed the namespace when they moved to Win2012 so it introduced a bug in OME. Are these VM's Win2012 or 2012R2 by chance?
If so, call and open a ticket so we can get you a couple of hotfixes to clean this up (800-945-3355).
Are you saying there's a hotfix so OME can see 2012R2 HyperV servers? If so, could you let someone in the UK teams know, so I can ring up and get it!