I see the problem. I forgot to backport the fix from 1.5.x for the clicking on the warning not doing anything. Instead you need to right-click and selected edit.
I think I'll just release 1.5.0 on Xenforo.com, till then this version is the one I've had installed for the last month and the 1.5.x branch has been on my sites for the last 2-3 months