Well, your file looks pretty darn similar to what I had the first time before I butchered it trying to make it work. It looked ok at first until I looked at the second feature. As soon as I edit the second feature a mystery tool pops up in the "Verify Tool Assignment" dialog. I hope this video works, are you seeing what I'm seeing?

2015-04-27_1813 - RTMachine's library

Thanks for looking btw