Hi, We have an issue with some thumbnails since we activated https on the Web site, some of them don’t display anymore. We found out that the solution might be to change the thumbnail generator from “aqua” to “wordpress” in the settings. The problem is that we can’t achieve that, we get an error message saying “The link you followed has expired.” We tried changing the php settings through the wp-config.php file but it’s still impossible to change the thumbnail settings. Thank you for your help.