CF code not being run from forms not on "node/add/foo" page

Using drupal_get_form on a page to generate the node add form creates a working form but the CF code does not run. On my test site CF works fine on the form at node/add/foo and the other page's form works fine except for the CF field. My method of confirming that the code was/was not being run was sticking a print at the beginning of the CF code.