nodehierarchy_children_teasers with Ancestor Node ID argument

I am having trouble getting this to work. I simply switch the 'argument' to 'Node Hierarchy: Ancestor Node ID'. In the live preview it works great, however, when I go to the page nothing is displayed.

When using the Devel module there are no 'execute' commands ran at all, this comes from under the 'where' column that is displayed. So to me it appears that the query is not being ran.