Add host to Host Aggregate Openstack Cloud Provider

fine
providers

#1
  1. I have added Openstack provider (Compute --> Clouds --> Providers)
  2. I created a “Host aggregate” and it was successfully created.
  3. I am trying to add a host/compute to this aggregate but it is giving me error.

Is there a page where I can see all host/compute nodes for a provider? Is it a bug?
I am using fine-4 release

Update:
I upgraded to “gaprindashvili-1-rc1” and now when I try to add Openstack Provider, I get this: