Featured image should be printed.

Looking into this! We should be able to fix from our end, with no updates required from your end. Give us a week or two.

Please give us a review on WordPress. https://wordpress.org/plugins/printfriendly/

Thanks! Might take us a couple of weeks to get through our queue of issues. If you want to fix immediately from your end, use our Custom Class names. It does require familiarity with editing your template.

Use our custom class names to include/exclude content. Add class=”print-only” to include an element and all it’s child elements. Add class=”print-no” to exclude an element.

– http://support.printfriendly.com/publisher/developer-questions/include-exclude-content/

– WordPress Only: http://support.printfriendly.com/publisher/wordpress/content-not-selected/