The road part that goes through Bree is not visible on the map. Also, customly spawned bree villages connect their roads with the one next to them, I'm not sure whether that is intended (this can be seen for the road part above the Bree waypoint). Note that I created that village before the fixed villages were generated (because I couldn't reproduce the issue after I did visit Bree and so on).
Yeah, I know. The question is, whether it's intended that the road part through Bree isn't displayed, because as the user above said, the road is continued inside Bree, so theoretically there is something that could be displayed.