I am working on a plugin that adds images to the Media Library and everything is working on the standalone version. The plugin uses these three actions to create the attachment (assume that $attachment contains post_title, post_content, and post_mime_type and $dest is the full path to the file in the uploads folder):
$attach_id = wp_insert_attachment( $attachment, $dest, false );
$attach_data = wp_generate_attachment_metadata( $attach_id, $dest );
wp_update_attachment_metadata( $attach_id, $attach_data );
return $attach_id;In standalone wordpress everything works just fine and dandy. In mu, the attachment is created, the images are created, I even get the attachment ID from the above code, but the Media Library shows no thumbnails, and I cannot use the image in my plugin. Is there anything extra needed in any of those three functions for MU to process these images correctly? Thanks.
