Can't re-order widgets

Hello,

I have come across a problem that I didn’t initially have with this plugin, and unfortunately I’m not sure what has changed.

Inside the custom sidebars I have created, once I put widgets in, I cannot change their order, or drag them outside of the sidebar to remove them.

I have tried creating a new sidebar, but it has the same problem as well.

Has anyone else come across this? Any help would be greatly appreciated.

Thanks!

http://ww.wp.xz.cn/extend/plugins/custom-sidebars/