Please look at the URL and check the page title where dynamic keyword is 'pagetitle' and the adword value is nicely set.
Check the screenshot for this shortcode :
Moreover, you can try with some adwords here for testing :
https://dynamicqstr.pixelomatic.com/dynamic-page-title/?pagetitle=My Page
https://dynamicqstr.pixelomatic.com/dynamic-page-title/?pagetitle=Lovely Test Page