Really hit or miss

We have 7 hyperv hosts - most do not get detected as a hyper v host - but incorrectly reported as Server 2012 R2. If I manually edit the machine details to a hyperv host it looses all the dial metric details and does not report on any hosted vms.
I see this has been a common theme over the years but as I am using the latest version I thought this would not be an issue?
Interestingly after deleting and adding dozens of times, doing a dance around the room and praying to the gods I managed to add 3 or the 7. I think however I have run out of fairy dust. Does anybody know where I can get some more, or even where I can get some help to resolve this. Unfortunately we just bought a license for this so support is now very 'scarce'.
Thanks in advance........