The logistics AI seems to have some problems at the moment.

In the pictures you can see, I sent them from Taimyr to Sputnik. With no obstacles or enemies, on an almost completly straight road, they managed to flip the truck. (And that was directly the first AI I send out to test)

In another game I saw them drive off a bridge and get stuck (route Humbold Hill MOB to Lamentin Harbor, around half way), and another logistics ai I saw was walking towards the Harbor with no truck, obvious wondering where they left their truck. (Route Humbold Hill MOB to Spaniards Bay Pier, Truck location unkown).