"Add post thumbnail" overlay bug

Hi guys,
It’s really great to hear that qtranslate will be developed along with newest versions of WP. It was pretty annoying to change plugin files during core upgrade.

I upgrade my WP to 4.0 and have installed qT+. When I was trying to add post thumbnail in edit screen the link didn’t push overlay to the screen but it redirect me to original path of upload module (media-upload.php?blablablabla).

When I deactive qT+, wp display overlay correctly.

Please let me know what to do to make the overlay happen on the post thumbnail link.

https://wordpress.org/plugins/qtranslate-xp/