Extractor Behavior Bug (not a bug, and fixed)

This happens in both HTML5 and Flash.

When I click on an extract behavior in the behavior editor, it says to either extract a value from itself or another object. But if I hit extract from another object, change what it extracts and hit confirm, nothing I did works. It sill shows extract from this object.
It used to work just fine. Am I doing something wrong?

Did you make sure you selected the object you wanted to extract from along with the type?

I put in the type but not the object. Thanks @“my_name (<_>)”