These are the issues resolved in PE 2018.1.x.
Disallowed Code Manager proxy setting for the Forge
This release fixes a regression that disallowed the proxy key for the Code Manager
Errors when creating node group UUIDs through the API (2018.1)
Previously, if you created a group with a self-generated UUID using the PUT /v1/groups/:id end point, the classifier would accept some UUIDs that the console considered invalid. As a result the console would generate the error, "Error retrieving group hierarchy: The group id specified is invalid." The regular expression used to validate these identifiers in the console has been made less restrictive to match the classifier behavior. It is: