I am able to use the field names of post_title and post_content in the Custom Fields areas with no problem but when I try to use post_thumbnail it won't use the featured image in the same way as post_title and post_content?? Here is a screen shot if that helps: https://prnt.sc/13cym71
Post object does not have property post_thumbnail like post_title or post_content. To get the featured image, please use the WordPress function get_the_post_thumbnail().
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