Mission Ice Labyrinth (Grand Theft Auto 5)

Hello. Help someone in the know. Faced a bug. Mission Ice Labyrinth. I can’t get through, as soon as I didn’t try it, it still writes - the task was not completed, there were gaps in the gasoline track. There is a yellow dotted line on the map, you need to spill gasoline on it. I spill the norms, the points do not remain, and all the same - the task is not completed.