Try moving it to the right to break, that might do the trick.
I know that it sounds stupid, but since you can't assign the break separately, it messes that up.
You can assign the break in jconfig and that one works fine.
You should be able to move up and down.
I noticed that the controls are not going up and down as much as the arcade machine itself does.
Something that needs to be looked into.
I used an xbox one controller and still trying to find the best config for it.