Image Issue inside Drafts Dashboard

Hi
I am trying to load frontpage main image inside dashboard.drafts.php template file, using the code below but for some reason it's not working

<?php echo $entry->getImage()->getSource( 'frontpage' );?>

Any tips on what can cause the issue, or maybe the code is wrong ?

This code works on dashboard.entries.php file but for some reason does not work inside dashboard.drafts.php