Issue galley locale error


One of our journals is wishing to publish a full issue but has come across this error when creating an issue galley.

We are using OJS 3.1.1

The Create Issue Galley form asks for a Public Galley Identifier as a required field (not a required field in previous versions?) but when text is added into the field the error “An issue galley locale is required” displays (see screenshot).

Is this a bug? Is there a particular format for issue galleys that we don’t know about?