Azure stack HCI VM resourec under another subscription

Hello,

I created a hci VM under another subscription (using script, the GUI not support this).
The VM and related resources under this subscription in a separated resource group.
Unfortunately the details of machine are not shown. 
This VM is not listed under the HCI cluster\Virtual Machines or Azure VMs.  (Only see under resources in RG)

Do you have any idea what is the problem?

As I read this is a supported configuration. (or not?)

Thx