Alex,
I noticed that nextgen-gallery loads the piclens library from the page head. Can you please adjust how this resource is loaded so that it loads from the page footer? I also included the reworked code from my WP install that does this. This version has the advantage of avoiding conflicts with other plugins that use piclens by asking WP to load the script for us.
lib/media-rss.php:
/**
* Add the javascript required to enable PicLens/CoolIris support
*/
function add_piclens_javascript() {
wp_enqueue_script( 'piclens', 'https://lite.piclens.com/current/piclens_optimized.js', array(), false, true);
}
Thanks,
Bart