anti affinity hyper-v 2019

Hello,

I setup a new Hyper-v 2019 cluster 2 nodes and build anti affinity rules but it's not working. Is there any special requirements or limitations ?

VM stay on the same node.

I use microsoft documentation :

$AntiAffinity = New-Object System.Collections.Specialized.StringCollection
$AntiAffinity.Add("DC")
(Get-ClusterGroup -Name "DC1").AntiAffinityClassNames = $AntiAffinity
(Get-ClusterGroup -Name "DC2").AntiAffinityClassNames = $AntiAffinity

I can see both DC1 and DC2 with DC anti affinity group DC with the following command
Get-ClusterGroup | fl AntiAffinityClassNames

5 |1600 characters needed characters left characters exceeded

Attachments: Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

question