I am using Basecamp 4.8.11 with my up-to-date Drive 53 connected to my MacBook. I want to create a route. I go to settings, routing and choose driving. I select two waypoints to make a route, and despite my preference choice of driving, Basecamp persists in calculating a walking route (which is always a straight line). I change the routing preference, but as soon as try to create a route, it reverts to walking.
How is choice of routing preference made to "stick" in Basecamp?