The problem with the mission "Familiar" (Far Cry 4)

Assignment with Hurley "Familiar feeling" mission with a truck. When I reach the truck in a gyrocopter and kill the driver, I go to the checkpoint, it is where I still have to destroy the food tent, in short, I get there and there is nothing, it does not disappear from the truck, it blew it up, it did not disappear, as a result, the bomb exploded and I spawn in I drive the truck to another checkpoint and it does not disappear either. what to do? Help!