Where there are multiple roles assigned to a node, it is referred to as a dynamic role family. Not all of them can be shown on the map due to space limitations, both in swimlane view and embedded view. In swimlane view five roles will be listed alphabetically. If there's more than five roles associated to a node, you can view all the roles as follow:
In both swimlane view and embedded view, open the diagram content menu on the right-hand side, and all the roles are displayed there.
In swimlane view only, hover over the roles to see all the associated roles.