Custom Bus Route Creation in WCA

This is in regard to the arrows that guide you to the next stop. No matter how many Waypoints I add to the "navhelp" section of the buslines.json file, the game insists that going backwards on the spot is quicker to get the next waypoint than going straight 20ft. I want the bus to be guided a different way from what Beamng automatically assigns it to. It seems like as soon as I hit the waypoint, the game doesn't even consider changing paths. It just ignores the waypoints. I have also tried adding in requiredWaypoints but Beamng still ignores those. I'm thinking that I might not be configuring the waypoints correctly in-game but there is little to no documentation on doing that. Any help is appreciated.