I was download the newer version attachment plugin and use it on WP 3.5, but I got a problem when I want SAVE the post. I can't save the attachment image. This is the warning:
Warning: json_decode() expects parameter 1 to be string, array given in C:\xampplite\htdocs\wordpress\wp-content\plugins\attachments\classes\class.attachments.php on line 988
What should I do?