CAT question

This question pertains to FS9 hangers with animated doors made in Gmax and processed using CAT.I'm using distance as the condition, applied to the trigger which is the nav freq. When distance condition is met, the animation will play forward if the freq condition is met, and then play backwards if I change the freq. However, if the distance and freq conditions are met (door has opened), and I move the plane so that the distance condition is no longer met but the freq condition still is, the animation goes directly to the static position rather than playing backwards. I thought that applying the condition to the trigger rather than to the animation itself was supposed to prevent this. Did I miss something?