When Nintex is enabled in a site collection, the 'Print to PDF' button shows on all lists even if not converted to using a Nintex form.  Previously this button worked to print standard list form but it seems this is no longer working.  When the button is clicked the console displays 'Uncaught ReferenceError: NWF is not defined'  my guess is that NWF is some function for Nintex Work Flow.  If the form is actually a Nintex form it is working fine.  How do I get the print feature working on a standard form?