The Luring Cavalier archetype for Cavaliers changes the usual Cavalier Challenge ability to another called Far Challenge. It otherwise works exactly like challenge.
The problem here is that the Cavalier Order it picks should be granting the Luring Cavalier a bonus to its Far Challenge. However, the BENEFIT MOD is not being added to Far Challenge. (I take it's not coded like Challenge).
This should be rectified, or at least, the benefit should be listed somewhere else.
Archetype ability replaces the base class ability Challenge. It should not be listed as a result of the Archetype removing it in place on a replacement ability.
It does not really replace Challenge. Far Challenge includes Challenge within it - if you keep on reading, you'll notice that being hit by an enemy causes Far Challenge to become Challenge (later, you can switch between these two types of challenge at will).
Therefore not knowing where the Order bonus stands at is a problem, regardless of whether it is considered that Far Challenge benefits, or doesn't benefit, from Order bonus.
Not fixed, Luring Cavalier uses the Challenge mechanic and there is no way to track what the Order bonus is.
"At 12th level, a luring cavalier can expend a use of his challenge to gain the benefit of far challenge or the normal cavalier challenge. He can even change the type of challenge an opponent is under the effects of as a swift action, as long as the target of the challenge is within line of sight."
This is for example another feature where knowing what your Order bonus to challenge is is necessary.
Challenge left in.