I’ve run into this issue a few times, and finding the resolution was not easy. Anyone deploying VMs through Windows RDS should read this article. In this situation, your VMs are created and show up in Hyper-V and Failover Cluster. In VMM they either do not show up, or they appear to move from Host to Host in VMM. ‘Cluster-Invariant’ is the culprit. Enjoy the quick fix!