@florent
Thank you very much for your quick help on this one.
The patch resolved the issue for both migrations we were struggling on.

It is fantastic to see the teamwork and a resolution developed so quickly.
Really makes us feel confident in knowing we made the right decision with going to XCP-ng for our clients.

Thank you

Hot damn!!

@flakpyro
For kicks and giggles I tried what you had sent

xe vm-param-add uuid=VM_UUID param-name=platform msr-relaxed=true

And sure enough it worked!!
Not exactly sure the technical details on what setting msr-relaxed=true does but hey if it works it works