System Default Cluster and New Cluster

Hi gurus

I am seeing a stange thing with our system. I created a new Cluster and associated it with the server host name.

It is now giving me a different login page than usual and doesnot allow "enterprise" ID to login

When I change the context back to System Default Cluster, I get regular login page and I am able to login as enterprise ID.

I am seeing that System Default Cluster has "Cluster Members" = full hostname.

Is this normal?

Point is we are able to create a new cluster now to associate it with our new context.

Thanks

JS