DFSR Replication Group OK and Namespace OK but not linked

If I look that a namespace, the Replication tab has no data in it.
At the same time, there is a Replication Group for the target folders.
So, this seems "not good" although I'm not sure of that.
I'd rather not ignore it but that may be the least work and not harmful??

If I try to set up Replication from the Namespace using the Replicate Folder Wizard, I get Errors:

\\domain\namespace\folder: The folder cannot be created in the namespace.  The folder already exists in the namespace.

What's a reasonable way to handle this anomaly?  Should I just ignore it?
It appears that replication is working just fine.
The namespace is addressable.