All right, this one's a real stumper. In the behavior, the first time I try to change something in the Walking class (part of the Run and Jump kit), I get a console warning saying the behavior doesn't exist. When I try to change it via a key later, it does exist. I don't have these problems with Running, Wall Sliding, or Air Jumping.
Even weirder is something I forgot to get a picture of: If I add in commands asking whether or not Jumper has the behavior Walking, it says "true"...and apparently, it's even enabled as well. So what's going on here?
EDIT: Whoops, something went wrong. Those twos should be in the other box and the variable name in its place. That's not the problem, however.