I had to modify the plugin to make it possible… it’s a little weird that they didn’t think it useful to even put it as an option.
For the sake of helping others, I’ve found the problem. For some reason the file in /wp-admin/admin-ajax.php had 00 as file permission. So I had to get root to change it back to 644.
I’ve even tried reverting to the old media uploader. Everything works better EXCEPT Featured Images.
How can I debug this?
Same thing here! For guests it just searches eternally…