pretty basic: e.g. if you start a campaign series on legendary, get to the second stage, and then try to play that stage on normal (which the old client had already predetermined this setting for you - in spite of how long ago it was) you get an "unable to play" pop-up with no real explanation or course of resolve. looks bad and will confuse new players EDIT: not really a "conflict" in coding terms i guess. sorry - bad title
