id summary reporter owner description type status priority milestone component version severity resolution keywords cc focuses 37697 Strange behavior with thumbnails on preview in 4.6 jbenton joemcgill "Since upgrading my site to 4.6, we've had strange behavior regarding featured images on preview. Whenever a preview_nonce appears in a preview URL, an additional &_thumbnail_id=xxxxxxx appears. And at that point, all featured-image thumbnails on the page become that specific image — even when they appear in a different loop or are called through other means. @swissspidy says on Twitter this may be related to this change in 4.6: [38118] Adding a wp_reset_postdata() does not seem to fix the problem. Screenshots and code available in this tweets in this Twitter thread: https://twitter.com/swissspidy/status/766004453807882244" defect (bug) closed high 4.6.1 Post Thumbnails 4.6 normal fixed has-patch has-unit-tests commit fixed-major